article_view
HIDE SEARCH RESULTS

Search Results

Quick Links

Orders & Payment

Shipping & Tracking

Returns & Exchanges

Warranty Portal

Submit a Request

swipe
swipe
  • BUYING GUIDES
  • ORDERS & PAYMENT
  • SHIPPING & TRACKING
  • RETURNS & EXCHANGES
  • CONSUMER GUARANTEE
  • ASSEMBLY GUIDES
  • BIKE CARE
  • ADJUSTMENTS & FIT
  • WORKSHOP SERIES
  • OWNER MANUALS
  • ARCHIVE
  • HARDTAIL MTB
  • DUAL SUSPENSION MTB
  • ROAD & GRAVEL
  • PATH & PAVEMENT
  • E-BIKES
  • KIDS BIKES
  • DIRT JUMPERS & BMX
  • COVID-19 Updates

BUYING GUIDES

Not sure which bike to buy? Let us help you decide.

Read more
0%

We can help you find the perfect bike size for you.

Read more
0%

Mountain bike technology has improved exponentially in recent years.

Read more
0%

Road bikes are one of the simplest forms of bikes on the market.

Read more
0%

  Commuting to and from work can have multiple benefits for the environment, mental health and physical health.

Read more
0%

E-Bikes take what is amazing about cycling around town, through the mountains and daily commuting and enhance it.

Read more
0%

Buying your child a bike can be an exciting time for both you and them, as this is their first chance to experience the enjoyment of cycling.

Read more
0%

If you're the type that likes to save a buck, our ex-demo bikes may sound interesting.

Read more
0%

As simple as a bike can be, a lot of the terminology and names can be quite confusing.

Read more
0%

The material of which a frame is constructed will have a huge impact on how it rides.

Read more
0%

ORDERS & PAYMENT

Bikes Online offer a number of payment methods including Visa, Mastercard, American Express, Paypal, Apple Pay, and Google Pay.

Read more
0%

Split payments are accepted between different cards and between credit cards on the same invoice.

Read more
0%

To be eligible to use Afterpay you must: Be an individual who is at least 18 years old (19 years old in Alabama or if you are a ward of the state in Nebraska); Be a resident of the United States and reside within one of the 50 states or the District of Columbia; Be capable of entering into a legally binding contract; Have a valid and verifiable email address and mobile telephone number; Provide a valid delivery address in the United States; and Be authorized to use the Payment Method provided (US-issued debit or credit card and AMEX)   How to use Afterpay: Add your items to the shopping cart and checkout as normal Valid for amounts between $0 and $1000 for first time Afterpay users.

Read more
0%

Bikes Online is a Proven Commercial Partner and Wholesaler We pride ourselves on our ability to import products efficiently.

Read more
0%

NO PURCHASE IS NECESSARY TO ENTER OR WIN.

Read more
0%

How does Bikesonline.

Read more
0%

SHIPPING & TRACKING

Bikes We ship bikes to the lower 48 (this excludes Alaska and Hawaii).

Read more
0%

All products are in stock and ready to ship from our warehouse in California 5-7 day order processing  Expect up to 7 business days for some orders to ship.

Read more
0%

Once your order has been dispatched from us, you will receive an email with a tracking number from FedEx or USPS.

Read more
0%

While we can deliver to both residential and commercial addresses, we recommend that you have your order delivered to a commercial address if you are generally not home during the week.

Read more
0%

Unfortunately we do not ship bikes or anything from our website outside of the lower 48.

Read more
0%

When you log in to your account, on the Bikes Online website, you'll notice that orders go through the process below:    On Hold - The payment is still being processed, the address may have been entered incorrectly, you used a direct payment from your bank, your credit card may have been declined/review OR if paying with your bank account it takes a few business days to clear.

Read more
0%

We require a signature for our deliveries so we prefer commercial addresses where there is someone present all day to receive your order.

Read more
0%

RETURNS & EXCHANGES

We’re so confident that you’ll love our extensive range of bikes, that we’ll let you return the bike for free in the first 14 days if you don’t! That's right, we’ll offer you a full refund for the bike, and also pick it up from you free of charge!    Just make sure you keep the original box and packaging so you can send it back, and make sure you follow the conditions below.

Read more
0%

Outside of the 14 day return offer, bicycles will only be accepted back within 30 days of purchase and only if they are new and unused.

Read more
0%

As long as the item has not been worn or used we're happy to receive it back for a refund or exchange.

Read more
0%

Incorrect Item: It is very rare for the wrong item to be shipped out to you but sometimes can happen due to human error.

Read more
0%

If you are going on a cycling holiday or perhaps returning a bike to us as a part of our 14 day bike return – repacking your bike is an important but easy thing to do to ensure that your bike arrives at its destination in perfect condition.

Read more
0%

Small part – Once a small part has been returned to Bikes Online, we normally process the exchange or refund within the day  Once we put through the refund to our accountant, it can take up to 10 business days for you to see the money.

Read more
0%

We get it, we all love to find deals and save money that's why we have a Post Sale Guarantee! If an item goes on sale within 14 days from the day you purchased, let us know and we’ll issue the difference as Bikes Online store credit, no questions asked.

Read more
0%

CONSUMER GUARANTEE

The frequency you should get your bike serviced will vary depending on the frequency you ride it.

Read more
0%

A lot of what defines the consumer guarantee of your specific purchase from Bikes Online depends upon the product’s intended use.

Read more
0%

Please contact Bikes Online After Sales Service via our online portal for all consumer guarantee and product support requests.

Read more
0%

Please contact Bikes Online After Sales Service via our online Portal for all consumer guarantee and product support requests.

Read more
0%

Our Customer Service team can be reached via email, phone or live chat.

Read more
0%

ASSEMBLY GUIDES

Congratulations on your new bike! For us, there’s nothing more exciting than building your bike.

Read more
0%

Assembling your new bike is one of the most exciting tasks ever, we agree.

Read more
0%

This article will guide you through how to install the front wheel on your new bike.

Read more
0%

Assembling your new bike is one of the most exciting tasks ever, we agree.

Read more
0%

Dropper posts are a game changer for mountain biking, allowing you to have your optimal pedalling position for climbing and with a simple press of the lever, you can push the saddle down to slay the descents.

Read more
0%

This article will guide you through how to install the basket on your Polygon Sierra Oosten.

Read more
0%

This article will guide you through how to install the mudguards on your Polygon Sierra Oosten.

Read more
0%

Exciting times ahead! This article will guide you through what comes with your new bike and how to unpack it.

Read more
0%

In case you need to re-pack your bike for travelling or shipping, follow this step-by-step guide to ensure it will reach its destination in great shape, by reducing the chances of damage in transit.

Read more
0%

BIKE CARE

The frequency you should get your bike serviced will vary depending on the frequency you ride it.

Read more
0%

Bikes Online sell and ship complete bicycles to all states in the US.

Read more
0%

Your suspension components need to be serviced on a regular basis to keep working properly and also for consumer guarantee reasons.

Read more
0%

A clean bike is a fast bike.

Read more
0%

Cleaning and maintaining your drivetrain might not be the most exciting task in the cycling world, but it sure is very important.

Read more
0%

Unfortunately we can’t be out riding bikes at all times, we still need to sleep or eat at some point of the day.

Read more
0%

Transporting your bike is usually a sign of good times ahead! For that we are more than happy to provide resources on how to transport your bike safely, so there are no hiccups during the journey and you can make the most out of your riding time.

Read more
0%

ADJUSTMENTS & FIT

When browsing for your next bike you may sometimes consider the possibility of upgrading some parts in order to make the bike more suitable for your riding style.

Read more
0%

After assembling your new bike, the first thing to do is the initial bike fit, in other words, customizing the bike measurements according to your body dimensions in order to achieve the most effective riding position.

Read more
0%

Correctly setting up the suspension is crucial for proper handling of your bike.

Read more
0%

.

Read more
0%

One of the most simple things you can do to your bike to improve the quality of your ride is checking and adjusting your tire pressure periodically.

Read more
0%

There are three main types of pedals, Flat Pedals, Mountain Bike Clipless and Road Clipless.

Read more
0%

WORKSHOP SERIES

Ride your bike enough and you’ll understand the importance of performing a periodical safety check.

Read more
0%

Assembling your new bike is one of the most exciting tasks ever, we agree.

Read more
0%

Beside being a lot of fun, bikes are also a way of transport that require regular maintenance just like a motorbike or a car.

Read more
0%

Welcome to the Workshop Series.

Read more
0%

Welcome to the Workshop Series.

Read more
0%

Welcome to the Workshop Series.

Read more
0%

Having a flat while out riding is never a good feeling, but if you master the tube replacement practice you’ll be able to get back on the road, or trail, in no time.

Read more
0%

A lot has been discussed around tubeless tires and how they can be beneficial for a number of reasons.

Read more
0%

A clean bike is a fast bike.

Read more
0%

Cleaning and maintaining your drivetrain might not be the most exciting task in the cycling world, but it sure is very important.

Read more
0%

OWNER MANUALS

To see the Polygon Bikes User Manuals, click here.

Read more
0%

To see the Marin Bikes User Manuals, click here.

Read more
0%

Please refer to the links below for more information on your Rockshox components:   Rockshox Suspension Setup and Tuning Guide Rockshox/Sram Service Resources Rockshox/Sram User Manuals Rockshox Service Intervals .

Read more
0%

Please refer to the links below for more information on your Fox components:  Fox Factory Tune Fox Tuning Guides Fox User Manuals Fox Service Intervals     .

Read more
0%

Please refer to the links below for more information on your SR Suntour components:   SR Suntour Owners Manuals SR Suntour SAG Tool SR Suntour General Suspension Fork Manual SR Suntour Rear Shock Owner's Manual .

Read more
0%

Please click here for more information on your Shimano components: Shimano Manuals & Technical Documents .

Read more
0%

Please click here for more information on your Sram components: Sram Service Archive .

Read more
0%

In this article you'll find all technical information, including service instructions for your bike components.

Read more
0%

ARCHIVE

To see Polygon Bike Archive, click here.

Read more
0%

To see Marin Bike Archive, click here.

Read more
0%

Please click here for the Rockshox archive.

Read more
0%

Please click here for the Fox archive: Fox Archive .

Read more
0%

Please click here for the SR Suntour archive: SR Suntour Archive .

Read more
0%

HARDTAIL MTB

What size are the wheels? All cascade models (2, 3, 4) and frame size come with 27.

Read more
0%

What size are the wheels? The Premier 4 and 5 come with 27.

Read more
0%

What size are the wheels? The Syncline 2, 3 and 5 come with 27.

Read more
0%

What size are the wheels? The Xtrada 5, 6 and 7 come with 27.

Read more
0%

What size are the wheels? The Cleo 2 comes with 27.

Read more
0%

What size are the wheels? The El Roy comes with 29" wheels.

Read more
0%

What size are the wheels? The Pine Mountain series come with 29" wheels.

Read more
0%

What size are the wheels? The San Quentin series comes with 27.

Read more
0%

What size are the wheels? The Team series comes with 29" wheels.

Read more
0%

What size are the wheels? The Bobcat Trail series come with 27.

Read more
0%

What size are the wheels? The Bolinas Ridge series come with 27.

Read more
0%

What size are the wheels? The Wildcat Trail series come with 27.

Read more
0%

DUAL SUSPENSION MTB

What size are the wheels? The Siskiu D5 comes in 27.

Read more
0%

What size are the wheels? The Siskiu D24 series comes in 24 inch wheels only.

Read more
0%

What size are the wheels? The Siskiu T7 and T8 come in 27.

Read more
0%

What size are the wheels? The Vander T series across all sizes are 27.

Read more
0%

What size are the wheels? Across the entire Alpine Trail range you can expect a standard 29 inch wheel platform for all models.

Read more
0%

What size are the wheels? Across the entire Rift Zone 27.

Read more
0%

What size are the wheels? Across the entire Rift Zone 29 range you can expect a standard 29 inch wheel platform for all models.

Read more
0%

What size are the wheels? The Rift Zone Jr comes in 2 different wheel sizes, 24 inch and 26 inch.

Read more
0%

ROAD & GRAVEL

What riding style is this geometry intended for? Perfect for entry level road cyclists looking to take on their first Gran Fondo, conquer their first triathlon or get involved with their local riding group on casual endurance rides.

Read more
0%

What riding style is this geometry intended for? This is a modern road bike with an accommodating endurance geometry for a more upright riding position.

Read more
0%

What riding style is this geometry intended for? An upright commanding riding position to tackle rough gravel roads or city streets with a priority on stability and control How many gears does this bike come equipped with? A wide ranging drivetrain with variations across the range from 2x9spd to the latest 1x11spd Gravel Specific system from Shimano Are the wheels tubeless ready? The wheelset is not tubeless ready, to set up tubeless you'll need a different wheelset or rims.

Read more
0%

What riding style is this geometry intended for? Long days on the saddle discovering new gravel trails just for the sake of exploring.

Read more
0%

What riding style is this geometry intended for? All day touring off road or back country scenic roads How many gears does this bike come equipped with? 3x9spd wide ranging touring centric gear set Are the wheels tubeless ready? The wheelset is ready to go tubeless when you'd like, all you need is some tyres and tubeless kit from our website and you can do the conversion at home.

Read more
0%

What riding style is this geometry intended for? An upright MTB based riding position for tackling both smooth and rough roads How many gears does this bike come equipped with? The Gaselt range offers bikes with 1x11spd drivetrains and also 2x8spd drivetrains at the entry level Are the wheels tubeless ready? The wheelset is ready to go tubeless when you'd like, all you need is some tyres and tubeless kit from our website and you can do the conversion at home.

Read more
0%

What riding style is this geometry intended for? The Lombard has an upright position that's as at home commuting into the city as it is rolling round country lanes on the weekend How many gears does this bike come equipped with? 2x9spd drivetrain Are the wheels tubeless ready? Unfortunately these wheels are not tubeless ready because are built with durability in mind for riding off into the sunset where sealant top ups are not possible.

Read more
0%

What riding style is this geometry intended for? The Nicasio has an upright position that's as at home commuting into the city as it is rolling round country lanes on the weekend How many gears does this bike come equipped with? There are several models that range in gear sets of 2x8spd to 2x10spd Are the wheels tubeless ready? Unfortunately these wheels are not tubeless ready because they are built with durability in mind where you might be hitting potholes or for riding off into the sunset where sealant top ups are not possible.

Read more
0%

PATH & PAVEMENT

What size are the wheels? The Path Series features a 700c wheel size (29" diameter).

Read more
0%

What size are the wheels? The Heist series comes with 700c (29 inch) wheels.

Read more
0%

What size are the wheels? The Urbano comes with 20" wheels.

Read more
0%

What size are the wheels? The Fairfax Series features a 700c wheel size (29" diameter).

Read more
0%

What size are the wheels? The Muirwoods come with 700c wheel size (29" diameter).

Read more
0%

What size are the wheels? The Presidio range comes with 700c wheels (29 inch).

Read more
0%

What size are the wheels? The DSX series comes with 700c wheels (29 inch).

Read more
0%

What size are the wheels? The San Rafael series comes with 700c wheels (29 inch).

Read more
0%

What size are the wheels? The San Anselmo comes with 700c (29 inch) wheels.

Read more
0%

What size are the wheels? The Kentfield series comes with 700c (29 inch) wheels.

Read more
0%

What size are the wheels? The Larkspur comes with 27.

Read more
0%

What size are the wheels? The Larkspur comes with 27.

Read more
0%

E-BIKES

The bike comes with 29x2.

Read more
0%

What size are the wheels? The Gili Velo comes with 20" wheels.

Read more
0%

What size are the wheels? The Path E comes with 27.

Read more
0%

What size are the wheels? The Alpine Trail E series comes in a "mullet" configuration (27.

Read more
0%

What size are the wheels? The Sausalito comes with 650b (27.

Read more
0%

KIDS BIKES

What size are the wheels? The Siskiu D24 series comes in 24 inch wheels only.

Read more
0%

What age group is this bike intended for? This bike is intended for riders from 5-8yo.

Read more
0%

What age group is this bike intended for? This bike is intended for riders from 7-12yo.

Read more
0%

What age group is this bike intended for? This bike is intended for riders from 5-8yo.

Read more
0%

What age group is this bike intended for? This bike is intended for riders from 5-8yo.

Read more
0%

What age group is this bike intended for? This bike is intended for riders from 7-12yo.

Read more
0%

What age group is this bike intended for? This bike is intended for riders from 7-12yo.

Read more
0%

What size are the wheels? The Rift Zone Jr.

Read more
0%

What age group is this bike intended for? This bike is intended for riders from 5-8yo.

Read more
0%

What age group is this bike intended for? This bike is intended for riders from 7-12yo.

Read more
0%

What age group is this bike intended for? This bike is intended for riders from 5-8yo.

Read more
0%

What age group is this bike intended for? This bike is intended for riders from 7-12yo.

Read more
0%

DIRT JUMPERS & BMX

What size are the wheels? This model is fitted with 26 inch wheels.

Read more
0%

What size are the wheels? This model is fitted with 26 inch wheels.

Read more
0%

What size are the wheels? This model is fitted with 20 inch wheels.

Read more
0%

What size are the wheels? This model is fitted with 20 inch wheels.

Read more
0%

What size are the wheels? This model is fitted with 26 inch wheels.

Read more
0%

COVID-19 Updates

Bikes Online response to COVID-19 These are certainly different times than we are used to, but as a community, this new environment is one that we are more than capable of adapting to.

Read more
0%
CLOSE ARTICLE

Bike Anatomy Explained

As simple as a bike can be, a lot of the terminology and names can be quite confusing. This piece will talk you through the bike parts and terms used when describing bike parts and the areas on a bike. We will start from the front and work out way back, going through every major component.  






  FRAMESET   


 

 

Frameset is the combination of frame and forks - quite straight forward for road bikes.  When describing a bike, you will often hear the frame referred to as the front and rear triangles. The front triangle refers to the top tube, down tube and seat tube. The way a bike fits the rider is determined by the measurements of these tubes. The front triangle houses the bottom bracket and most of the suspension components on an Mtb.

 



 

The rear triangle was traditionally attached to the seat tube, and it comprised the seat stay and chainstay. While this is still relevant to hardtails and road bikes, the rear triangle isn’t fixed on a dual-suspension system. The seat and chainstays are attached to links on the seat tube. The rear triangle is essentially floating, which allows the rear wheel to travel up and down.  

 

 



  HEADSET  



 

 

 

The "headset" refers to the bearings in the head tube which allow the fork to rotate in the frame. Without these bearings, you wouldn't be able to turn the handlebars. 


Headset bearings don't just come in one size, unfortunately. Thankfully our My Garage system will be able to point you in the right direction. 




 

Some common symptoms that your headset bearings need replacing are a knocking or “crunchy” feeling when you turn your handlebars. A creaking or knocking sound can be heard when the bearing is contacting directly with the “cup” that holds the bearing in place. Coating the interface of the bearings and cup with high-quality grease can fix this issue. 


If you ever remove the forks or the bearings and they are no longer a solid unit, they need replacing asap. If you feel any of these fixes are beyond you, any good local bike shop will be able to help. 

 

 



  STEM   




 

The stem is one of the most basic parts on a bike; however, it can cause a dramatic effect on the handling characteristics and a bike fit. 

On an MTB, a stem length between 35 and 70mm. Any longer and the bike's steering will feel sloppy and slow. Longer stems can also set a rider's weight over the front angle. When heading down a steep trail, it can cause a rider to be pitched too far forward, so a shorter stem is used. 


A longer stem will help stop the front wheel from rising when climbing up a steep trail. Some Xc riders will also have a negative rise stem to get their weight forward and low for pure climbing efficiency. 


On a road bike, stem length is used to adjust a rider's fit within reason. Most road bikes use a 90-110mm long stem. You will see pro riders with smaller frames and longer stems to maintain a short, stiff and agile wheelbase. You will also notice their stems are extremely low to get their body in the best aerodynamic position and maintain a good climbing position. We wouldn't recommend mimicking an extreme body position and riding style unless you are 100% sure. 



 

 

It is more important for most riders to be in a comfortable position that they can ride in at all times as they are rarely racing. If you feel stretched and are reaching for the bars, try a shorter stem. If you are cramped and feel like you are too upright, a longer stem may help. 





  HANDLEBARS   




While handlebar width is extremely important to the bike's handling, bar height is just as important yet often overlooked. Bar width will change how stable a bike feels; wider will add stability, while narrower will speed up the steering. 


If the bars are too wide, you may find it difficult to move the bike around effectively because your arms are extended, and the range of movement will be diminished. Because you have to move the bars further to make a significant change in direction, this adds stability. Still, it requires more input from riders when they need to make the bike change direction faster. 



 

 

Narrow bars make a bike more agile and speed up the handling but to the detriment of stability. If the bars are too narrow, it can make a bike twitchy and erratic. If it is too narrow, you may also find it difficult to breathe as your chest will be closed up.


It is best to aim to match your bar width to your shoulder width with 2cm added. When experimenting with bar width is best by starting wide and trimming fractionally. You can always take more off but, you can't add more on. 





  FRONT THRU AXLE   


 

The front thru-axle passes through the fork dropouts and the hub to hold the front wheel in. Unlike common quick release or bolt-on axles, the thru-axle is a completely separate part of the hub assembly. Because of this, it is the fork that determines what axle is used. 



 

 

Rockshox tends to use their own standard called the Maxle, which is available in a quick release or stealth (Allen key) style screw in the axle on mountain bikes. Fox use their standard QR style with their floating axle design or a “Kabolt” Allen key bolt with a pinch axle. Suntour uses their Q-Loc system that differs from both and is as simple as pushing the axle through and closing the lever. All axles are now 15mm thick and will work with a majority of hubs as long as the width is compatible. The two major widths are  100mm and 110mm, with all new bikes using the latter. 



 

 

Road bikes with rim brakes use a standard 9mm QR that has been on bikes for years. They are light, easy to use and fairly common sizes. Newer road bikes that have disc brakes use a 12mm thru-axle for safety. Although they use the same width hubs across all bikes, each axle is specifically designed for the brand and their fork. It is not as simple as buying any axle. However, we offer you the right axles in “My Garage” and tech documents. 





  HUBS   


 

Hubs are the heart of a wheel, and while they may seem simple, there are a few different variants. Front hubs are available in multiple widths, axle sizes and brake styles. The standard quick release axle is a 9mm axle that is 100mm wide. This is common for all road bikes with calliper brakes. You can get a 100mm wide hub with a 12mm thru-axle for road and a 15mm axle for “non-boost”  MTB forks. Some older bikes predating 2009 will have a 20mm axle. Boost refers to a 110mm hub width available in a 12mm axle for road and 15mm thru-axle for MTB. 



Rear hubs are available in “boost” and “non-boost”. Boost hubs are 148mm wide and use a 15mm thru-axle in MTB or a 12mm axle in road bikes. “Non Boost” hubs are 142mm wide and come in 9mm, 12mm or 15mm axle widths. A rare standard called “super boost” uses the older DH standard of 157mm wide hubs, but this is a very niche hub size.





  FREEHUB   



 



The gears on a rear hub slide onto a part called a "freehub". There are 4 major styles of freehubs that relate to the brand of the drivetrain. SRAM, Shimano and Campagnolo all use different freehub splines to hold the cassettes. The only common one shared between a few brands is Shimano's "Hyper glide" freehub. Used for most 8/9/10/11 speed cassettes from SRAM or Shimano, where the smallest gear has 11 teeth. 



SRAM pioneered using a 10 tooth gear as the smallest gear on their first 11-speed wide-range cassette. The major change that allowed such a small gear was the XD driver. An XD driver has no splines, and the cassettes screw directly onto the freehub. SRAMS 12-speed eagle drive train on mountain bikes still use XD however, the AXS 12 speed on-road uses XDR. Sram NX and SX level 12 speed cassettes still use an HG freehub; however, you will only get an 11 tooth small gear. 



 

 

Shimano has used the HG freehub for many years now, but there are some variants. All 8,9, and 10-speed cassettes fit the same HG freehub body. 11-speed road cassettes are 1.85mm wider and require the wider 11 speed HG freehub body. 8,9 and 10-speed cassettes will fit the 11-speed hg freehub with the right combination of spacers. Shimano 12 speed uses a "Micro spline" freehub to use a smaller 10 tooth cog. Micro spline freehubs ONLY work with Shimano 12 speed cassettes. 

 

 

 




Campagnolo is a Italian component manufacture that uses its own freehub for both 12 and 11-speed drive trains. As this is not on any of our bikes, there is no need to go into detail; however, if you plan on upgrading to Campagnolo on a road bike, you should keep that in mind. Please reach out to our service team if you have any questions.



 




  BRAKES   


 

 

 

Brakes come in 2 major styles with 4 subcategories. The first style is the rim brake which uses rubber pads to clamp the rim and slow the bike. The second style is a disc brake which uses callipers to clamp pads on a disc attached to the hub. The final style is kickback or coaster hub brakes which expand brake shoes inside the hub to slow the bike down. 



 

 

Rim brakes are available in the V-brake style and the U-Brake style. Most bikes that are used off-road and may experience the tires getting muddy use V-Brakes. This is because V-Brakes sit further away from the tire and the chances of them getting clogged by debris are low. V-Brakes also use larger pads on larger levers to clamp the rim, so they are naturally more powerful. 


U-Brakes only allow a maximum tire width of 28mm, so they are specifically on high-performance road bikes. They are light, have excellent modulation and are super powerful. With the advancement of wheels and the increasing use of carbon fibre rims, U-brakes started to show their weakness. Excess heat can damage a carbon rim, and the braking surface is smooth, so there was decreased performance. 



 

 

Disc brakes are available in hydraulic or cable variations. Cable discs are operated by a brake cable and are the cheaper, more basic option. The simplicity leads to reliability and easy serviceability. They perform amazingly in commuting and light off-road use thanks to their ability to clear water or debris easily. 


Hydraulic discs are essentially the same technology as what your car or motorbike use in a smaller package. Hydraulic discs offer supreme power, greater modulation and reliability. Unfortunately, they are a little tougher to work on and bleeding the system requires special tools.  These are for you if you are riding aggressive MTB, fast road descents, or just want powerful brakes. 


Discs come in two different mounting styles, 6 bolt and centerlock. The style of disc you use is dependent on the hub's mounting style. We have provided pictures below to show you the differences. 





  DERAILLEURS   


 

Front or rear derailleurs are often also referred to as mechs. They are the components responsible for shifting the chain between gears. Although SRAM and Shimano both have the same gears on many drivetrains, the parts are not interchangeable. A Shimano shifter won’t work with a SRAM rear derailleur and vice versa. 



 


Derailleurs are also specific to the number of gears on the cassette.  You can only use a 12-speed mech on a 12-speed cassette, an 11-speed mech on an 11-speed cassette and so on. 


The amount of teeth you have on the largest cog also determines the rear mech you can use. If you have a 32 tooth cassette, then a derailleur only rated to a 30 tooth will never work effectively. So make sure when you are upgrading or changing the cassette/rear mech, you notice their limitations. 

 

 

 





  TIRES   


 

Road bike tires have evolved massively over the last 5 years, with many riders finding that bigger can be better. The measurements seem confusing but are actually quite simple. The most common wheel diameter is 700mm, and they often run a 25-45mm tire width range. 650b wheels have gained some popularity in the gravel market over the last few years thanks to bigger tires that add comfort and traction. 

 

 

 

 

 

 

High-performance road bikes will run a 25-28mm tire width that balances comfort and performance. Modern road bikes come with 28-35mm widths for extra comfort and traction on rougher roads and longer rides. Gravel and cyclocross run 33mm to 50mm, often with knobs for extra traction. 


The “C” you see on tires just relates to the fact it is a clincher tire. This label is almost redundant as most tires are clinchers and no longer tubular like the old days. 


If you look at your tires, they will say 700x32c, 650X50c or 700x28c, all depending on the tires you have. The first number relates to the wheel diameter, and the second is the width.  These are the only numbers worth noting on the tires. 

 

 

 

 

 

 

Mountain bikes use inches for some unknown reasons but, it is what it is. Many years ago, the most common size was 26 inch.  In the modern-day, 27.5 and 29 inch are the most common. 


MTB tires will read a 29 or 27.5x 2.1/2.25/2.3/2.4/2.5/2.6, with the second number being the tire width at the knobs. Bikes like xc bikes will only accommodate a maximum width of 2.3. Trail and enduro bikes use a 2.3-2.6 wide tire. If you want more traction, better tracking through the rough and more comfort, then a wider tire will give you that. 

 

 

 






  BOTTOM BRACKET    


 

The bottom bracket refers to the bearings that retain the crank spindle in the frame. When cranks were a 3 piece component where the two crank arms were attached to a common spindle, the bottom bracket was a separate component that included the spindle. 




 

Modern 2 piece cranks have the spindle permanently attached to one of the cranks. Bearings are either pressed or screwed into the frame, and the spindle slides through the bearings. This has made the components cheaper, better quality and much more reliable. 

 

 

 

 

 

 

Due to the extra stress bottom brackets encounter from dirt, stress and lack of cleaning, they can be a major noise source. To avoid any noise or issues, it is important to keep the bearings lubricated, clean and maintained to the best of your ability. They are a disposable wear item, so it isn’t uncommon to replace them regularly. 





  SEAT POST   



 

 

 

Like many other components, the humble seat post has undergone numerous changes over the years. There is no such thing as one standard size, and there are dropper posts to consider as well. Finding what diameter seat post you need is simple as it is stamped into the post. If you simply pull the post out, you will find the diameter on the back. 


Dropper seat posts are the greatest invention since the wheel for mountain bikes. At the flick of a lever, you can lower the post from your optimum pedalling seat height to a position better suited to descending. 


The amount of drop can vary from 125mm to 200mm for most brands. It is often advised that you find the most amount of drop that accommodates your maximum seat height. If you are unsure what is best for you, reach out to our experienced support team. 





  SUSPENSION LINKAGE   

 

 

 

 

 

 

While specific to MTB, Suspension linkages are important to ensure they are torqued to spec often. A loose linkage or pivot bolt will be noisy and cause extra flex in the frame and hinder suspension performance or cause damage. Keeping them tight and clean will expand your frames lifetime by years.