Upgrade or fix your bike with our

large range of components

If you already own a bike and are looking for some components to repair or enhance it, bikeZaar can provide you with items like bike frames, tyres, brakes, inner tubes, handlebars and more to fix your existing kit. With brands like Shimano, Campagnolo, SRAM, M:Part and BBB offering a range of components, and Zipp and Mavic offering wheels, you can easily get what you need to fix or optimise your bicycle.



Chain Rings


Chain Devices








Caliper Brakes


Disc Brakes


Cantilever Brakes






Power Meters






Bar Grips


Bar Tape




End Caps








Rim Tape








Bottom Brackets








Front Mech


Rear Mech




Rear Shocks


Bash Guards




Derailleur Hangers


Featured Brands










£100 to



Popular Cycling Components

Reparing Your Bike Or Optimising Its Performance

If your beloved bike is damaged or not performing at its best, you do not necessarily want to just throw it out and get a new one. It is possible to buy components that can replace the inner tube, or the handlebars, or the frame, brakes or gears without needing to get a whole new bicycle.

When you are looking for bike components, you want to know that you are getting high quality components that will enhance your bike and improve performance and efficiency. You might be looking for specific brand names, such as Campagnolo or Shimano, or you may just know that you need a wheel or a tyre, a stem or a seat, or gears and drivetrains.

Take some time to study the build and brand of your bike so that you purchase the best accessories and components that will fit and will optimise your cycling experience. Don’t be afraid to contact the retailers you want to buy from to double check details and to be extra sure that the component you are buying is suitable for your cycle. And take advantage of the ‘collect in store’ options if you want to triple check!

Repairing rather than rebuying is not only a more affordable option for cyclists, it is also more energy efficient and ecological – why waste all the working components of a bike when only one or two are damaged or broken? If you can replace the inner tube, or put in a new pair of tyres, when the bike itself is perfectly good, why not do so?

How To Choose Bike Components

Carry out all relevant measurements on your existing bike so that the components you buy are a good fit and won’t damage your gear. Getting the right fit is important so that your cycle is as streamlined as possible, so take the extra time to ensure you are buying the most suitable kit. If you have any questions, contact the retailers on this site for information. 

Gears and Drive Chains

Gears and drive chains are the components that make the pedals turn. You can’t have one without the other. From the bottom bracket to the chain. They all need to fit together in order for it to all work effectively.If you are looking for bike components, specifically gears and drivetrain components, such as groupsets, front and rear derailleurs, crank sets and chainrings, you can find what you need here at bikeZaar. We have different brands for the components you need, such as Shimano, SRAM and Campagnolo, so we have all the top quality gear you could possibly require, to be delivered to your door or collected from a nearby bike shop.

Bike gears

Gears on bikes work when the cyclist moves the gear shifter. This gets shorter or longer, depending on whether the cyclist pushes or pulls the gear shifter, and this moves a derailleur, which controls the chain, moving it to the right chain ring.Sound complicated? It isn’t, really. The cyclist chooses the most appropriate gear for the riding they are doing. Higher gears may be most suited to downhill cycling, whereas a low gear can make it easier to cycle uphill.When a bike is in a low gear, the cyclist has to pedal faster but with less force to maintain the same speed. When in a high gear, more force is required, with slower pedalling.

Gears and Drivetrains

The gear shifters are usually found on the handlebars of a bike and can be adjusted while cycling to suit the conditions. They have gear cables attached to them, which connect to the derailleurs.The chainrings are attached to the pedals of the bike.The chain is visible and attached between the chainrings and the sprockets or cogs.The sprockets or cogs are on the right-hand side of the rear wheel, attached to the centre.The derailleurs move the chain from one chainring to another or between the cogs, or sprockets.The drivetrain is the name for the entirety of these components, so it is made up of the pedals, cranks, chainrings, chain, cogs or sprockets, and derailleurs.Keeping your drivetrain and gears in good conditionInspect your gears and drivetrain regularly to check there is no wear and tear or obvious, visible damage. Taking care of your derailleurs in particular is important to ensure a smooth ride when you change gear. Both the front and rear derailleurs play a vital role in your bike’s health, as do the chainrings, gear shifters, chain and cogs, so replace them when they need it to avoid causing damage to your bike and its other components.Look at our Shimano, BBB and Campagnolo pages for full details on the gear and drivetrain accessories we sell.