Gears, Drivetrain & Cables

Thanks for visiting Cycle Republic

After more than five successful years, our friends at Cycle Republic have sadly ceased trading. However, Halfords is part of the same family of companies and we remain on-hand to provide great cycling products, high quality services and expert advice.

Bikes Built & Delivered for £25
Bikes Built &
Delivered for £25
FREE Bike Build on all Click & Collect orders
FREE Bike Build on all
Click & Collect orders
Spread the cost with our flexible finance from £99
Spread the cost with our
flexible finance from £99
Up to 42% savings with Cycle2Work
Up to 42% savings
with Cycle2Work
Cycle Republic
Cycle Republic

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KMC logo
4.6 / 5 (10)
£18.99 £13.59 save £5.40
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we Fit
£12.00
Free standard delivery on bike parts, accessories & clothing
For orders under £20, £2.99 will be discounted at basket.
Save a further £6.39 with Cycle2work
£18.99 £13.59 save £5.40
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we Fit
£12.00
Save a further £6.39 with Cycle2work
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Online Exclusive
KMC logo
4.0 / 5 (2)
£32.99 £23.75 save £9.24
+
we Fit
£12.00
Free standard delivery on bike parts, accessories & clothing
For orders under £20, £2.99 will be discounted at basket.
Save a further £11.16 with Cycle2work
£32.99 £23.75 save £9.24
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we Fit
£12.00
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New
KMC logo
4.7 / 5 (13)
£26.99
+
we Fit
£12.00
Free standard delivery on bike parts, accessories & clothing
For orders under £20, £2.99 will be discounted at basket.
Save a further £12.69 with Cycle2work
£26.99
+
we Fit
£12.00
Save a further £12.69 with Cycle2work
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Save a further £12.69 with Cycle2work
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New
KMC logo
2.0 / 5 (1)
£26.99 £16.99 save £10
+
we Fit
£12.00
Free standard delivery on bike parts, accessories & clothing
For orders under £20, £2.99 will be discounted at basket.
Save a further £7.99 with Cycle2work
£26.99 £16.99 save £10
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we Fit
£12.00
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Online Exclusive
KMC logo
4.8 / 5 (4)
£13.32
+
we Fit
£12.00
Free standard delivery on bike parts, accessories & clothing
For orders under £20, £2.99 will be discounted at basket.
Save a further £6.26 with Cycle2work
£13.32
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we Fit
£12.00
Save a further £6.26 with Cycle2work
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Get your brakes
checked and cables
replaced with a
Cable Brake Service*

*includes a Free Bike Health Check

Best Seller
Shimano logo
4.6 / 5 (71)
£34.99 £22.95 save £12.04
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we Fit
£12.00
Free standard delivery on bike parts, accessories & clothing
For orders under £20, £2.99 will be discounted at basket.
Save a further £10.79 with Cycle2work
£34.99 £22.95 save £12.04
+
we Fit
£12.00
Save a further £10.79 with Cycle2work
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Top Rated
Clarks logo
4.8 / 5 (346)
£3.00
Free standard delivery on bike parts, accessories & clothing
For orders under £20, £2.99 will be discounted at basket.
Save a further £1.41 with Cycle2work
£3.00
Save a further £1.41 with Cycle2work
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Book a Free Bike Health Check or see what Cycling Services and Repairs we have to offer
Halfords Recommends
Online Exclusive
Shimano logo
4.9 / 5 (18)
£39.99 £20.66 save £19.33
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we Fit
£12.00
Free standard delivery on bike parts, accessories & clothing
For orders under £20, £2.99 will be discounted at basket.
Save a further £9.71 with Cycle2work
£39.99 £20.66 save £19.33
+
we Fit
£12.00
Save a further £9.71 with Cycle2work
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Save a further £9.71 with Cycle2work
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3.5 / 5 (72)
£20.00
Save a further £9.40 with Cycle2work
£20.00
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Shimano logo
4.4 / 5 (36)
£24.99 £14.36 save £10.63
+
we Fit
£12.00
Free standard delivery on bike parts, accessories & clothing
For orders under £20, £2.99 will be discounted at basket.
Save a further £6.75 with Cycle2work
£24.99 £14.36 save £10.63
+
we Fit
£12.00
Save a further £6.75 with Cycle2work
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Save a further £6.75 with Cycle2work
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Top Rated
Halfords logo
4.9 / 5 (92)
£1.00
Free standard delivery on bike parts, accessories & clothing
For orders under £20, £2.99 will be discounted at basket.
Save a further £0.47 with Cycle2work
£1.00
Save a further £0.47 with Cycle2work
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Within our range, you'll find a huge volume of products for all the important elements of your bike, this includes gears, chains, cassettes, drivetrain and cables. You'll find something for each and every cyclist, whether you ride a mountain bike , road bike or a BMX bike . Depending on which element of your bike you are looking to upgrade or replace, we stock products for all skill levels and budgets. If it's a gear set you're looking for, we stock a great selection of Shimano gears, offering 8-speed cassette, 9-speed cassette, 10-speed cassette and 11-speed cassette. Shimano is the leading brand for bicycle gears, with build-quality, price and versatility being in their favour. Our range of Shimano gears, cassettes, derailleurs and chains offer something for every cyclist, with products covering all price points and types of bike. Whether you're looking for a Shimano MTB gear cable set for smoother shifting, or Shimano double road levers which make shifting faster, smoother and lighter on road bikes. As well as Shimano, we stock quality products from the likes of Sram, Clarks and Truvativ, offering front & rear derailleurs, chainsets, chainrings, drivetrain spares and accessories and much more. But that's not all, as if you're looking for advice on how to replace a gear cable on a mountain bike or how to adjust bike gears on a road bike , our cycling help & advice hub offers all the help you need. You'll find informational videos and helpful advice guides on everything cycling. What's more, with our convenient click & collect service, you can get a hold of your products sooner too. Or, opt for delivery or head to your local Halfords store where one of our team will be happy to assist you.

Gears, drivetrain and cables FAQs

How to change gear while cycling

In order to shift gears when cycling, shift the shifters on the handlebars. The left shifter usually shifts the front gears (chainrings) and the right shifter shifts the rear gears (cassette). Shift down to a lower gear (smallest chainring or largest rear cog) for climbing or easy pedaling. Use higher gears (largest chainring or smallest rear cog) for flat or downhill speeding. Always relieve some pressure from the pedals during shifting to provide smooth gear transitions and reduce drivetrain wear.

How often should I clean a bike drivetrain?

Clean your bike drivetrain every 100–200 miles, or more frequently if you ride in rainy, muddy, or dusty conditions. A clean drivetrain smooths shifting, is longer lasting on components, and improves efficiency. Degrease the chain, cassette, and derailleurs, and once dry, apply a suitable lubricant.