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Transmission

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Halo

0.8mm Cassette Spacer

£1.99
Available Sizes

Gusset

1-ER Singlespeed Converter With 16 & 18T Cogs

£19.99

Shimano

10-Speed E-Bike Chain (138 Links)

£38.99  
Was  £42.99   | Save  £4.00   (9%)

Wolf Tooth Components

104 BCD Chainring For Shimano 12 Speed

From  £81.00  
Was  £85.00   | Save  £4.00   (5%)

Praxis Works

104 BCD Narrow Wide 1x Chainring

£55.00
Available Sizes

Praxis Works

104 BCD Narrow Wide 1x Direct Threaded Steel E-Bike Chainring

£30.00
Available Sizes

5Dev

104BCD Titanium Chainring

£149.99
Available Sizes

Shimano

105 5701 10 Speed Rear Derailleur

From  £44.99  
Was  £49.99   | Save  £5.00   (10%)

Shimano

105 Di2 R7150 12-Speed Braze-On Front Derailleur

£127.99  
Was  £149.99   | Save  £22.00   (15%)

Shimano

105 Di2 R7150 12-Speed Rear Derailleur

£233.99  
Was  £274.99   | Save  £41.00   (15%)

Shimano

105 FC5800 11-Speed Chainring

From  £17.99  
Was  £19.99   | Save  £2.00   (10%)
Available Sizes

Shimano

105 FCR7000 11-Speed Chainring

From  £17.99  
Was  £19.99   | Save  £2.00   (10%)

Shimano

105 HG710 12-Speed Cassette (11-36T)

£76.99  
Was  £84.99   | Save  £8.00   (9%)
Available Sizes

Shimano

105 R7000 11 Speed Rear Derailleur

From  £49.99  
Was  £54.99   | Save  £5.00   (9%)

Shimano

105 R7000 11-Speed Cassette

From  £49.99  
Was  £54.99   | Save  £5.00   (9%)
Available Sizes

Shimano

105 R7000 11-Speed Front Derailleur

From  £37.99  
Was  £41.99   | Save  £4.00   (10%)

Shimano

105 R7000 11-Speed STI Lever (Pair)

£206.99  
Was  £229.99   | Save  £23.00   (10%)

Shimano

105 R7000 Crankset

£143.99  
Was  £159.99   | Save  £16.00   (10%)

Shimano

105 R7020 11-Speed STI Lever

£166.99  
Was  £184.99   | Save  £18.00   (10%)

Shimano

105 R7020 STI Lever With Flat Mount Caliper

£251.99  
Was  £279.99   | Save  £28.00   (10%)
Finance From £8.61/mo

Shimano

105 R7025 11-Speed STI Lever

£166.99  
Was  £184.99   | Save  £18.00   (10%)

Shimano

105 R7100 12-Speed Cassette (11-34T)

£62.99  
Was  £69.99   | Save  £7.00   (10%)
Available Sizes

Shimano

105 R7100 12-Speed Crankset

£135.99  
Was  £159.99   | Save  £24.00   (15%)

Shimano

105 R7170 Di2 11-Speed STI Lever

£224.99  
Was  £249.99   | Save  £25.00   (10%)

Shimano

105 R7170 Di2 STI Lever With Flat Mount Caliper

£314.99  
Was  £349.99   | Save  £35.00   (10%)
Finance From £8.61/mo

Shimano

105 RS510 11-Speed Crankset

£112.99  
Was  £124.99   | Save  £12.00   (10%)

KMC

11 Speed DLC Chain (118 Links)

£89.99  
Was  £99.99   | Save  £10.00   (10%)
Available Colours

Hope Technology

11 Tooth Jockey Wheel

£21.00  
Was  £22.50   | Save  £1.50   (7%)
Available Colours

Hope Technology

11 Tooth Jockey Wheels (Pair)

£41.00  
Was  £45.00   | Save  £4.00   (9%)
Available Colours

Shimano

11-Speed E-Bike Chain (138 Links)

£53.99  
Was  £58.99   | Save  £5.00   (8%)

Shimano

11-Speed Quick Link (2 Pack)

£13.99  
Was  £14.99   | Save  £1.00   (7%)

SRAM

11-Speed X-Glide Road Outer Chain Ring 5-Bolt 110BCD

From  £128.00  
Was  £142.00   | Save  £14.00   (10%)
Available Sizes

Wolf Tooth Components

110 BCD Chainring for Asymmetric 4-bolt Shimano Cranks

From  £93.00  
Was  £97.00   | Save  £4.00   (4%)
Available Sizes

Wolf Tooth Components

110 BCD Cyclocross Chainring (Sram Flat Top Chain)

From  £78.00  
Was  £97.00   | Save  £19.00   (20%)
Available Sizes

Praxis Works

110 BCD Narrow Wide 1x Chainring

From  £90.00
Available Sizes

Praxis Works

110 BCD Narrow Wide 1x Direct Threaded E-Bike Chainring

£105.00
Available Sizes

Cannondale

119mm Ai Complete Bottom Bracket For SuperX 2017

£77.99  
Was  £85.99   | Save  £8.00   (9%)

Cannondale

119mm Ai Hollowgram Crank Spindle

£40.49  
Was  £44.99   | Save  £4.50   (10%)

KMC

12 Speed DLC Chain (126 Links)

£89.99  
Was  £99.99   | Save  £10.00   (10%)
Available Colours

Hope Technology

12 Speed Shimano Retainer Chainring (Spiderless)

£33.00  
Was  £55.00   | Save  £22.00   (40%)
Available Colours
Available Sizes

Hope Technology

12 Tooth Jockey Wheel

£21.00  
Was  £22.50   | Save  £1.50   (7%)
Available Colours

Hope Technology

12 Tooth Jockey Wheels

£41.00  
Was  £45.00   | Save  £4.00   (9%)
Available Colours

Shimano

12-Speed Quick Link (2 Pack)

£13.99  
Was  £14.99   | Save  £1.00   (7%)

Cannondale

125mm Ai Hollowgram Crank Spindle

£40.49  
Was  £44.99   | Save  £4.50   (10%)

Hope Technology

13 Tooth Jockey Wheels (Pair)

£41.00  
Was  £45.00   | Save  £4.00   (9%)
Available Colours

Wolf Tooth Components

130 BCD Cyclocross Chainring (Sram Flat Top Chain)

From  £93.00  
Was  £97.00   | Save  £4.00   (4%)
Available Sizes

Hope Technology

13T Jockey Wheel

£21.00  
Was  £22.50   | Save  £1.50   (7%)
Available Colours

Hope Technology

14 Tooth Jockey Wheel

£26.00  
Was  £28.00   | Save  £2.00   (7%)
Available Colours

Hope Technology

14/12 Tooth Jockey Wheels (Pair)

£41.00  
Was  £45.00   | Save  £4.00   (9%)
Available Colours

Cannondale

166mm Hollowgram Crank Spindle

£44.99  
Was  £49.99   | Save  £5.00   (10%)

Scott

16T Chainring For E-Spark/E-Aspect (2014) And E-Contessa Scale (2017)

£40.00

Scott

17T Chainring For E-Aspect/E-Genius/E-Spark (2016)

£45.00

Scott

17T Miranda Delta Boost Sprocket For E-Genius Plus (2016)

£90.00

Gusset

19mm Bottom Bracket Axle Spacer Kit

£5.99

Kinesis UK

1X Chain Guide

£20.00

Renthal

1XR Chainring (104BCD)

From  £57.99  
Was  £63.45   | Save  £5.46   (9%)
Available Sizes

Renthal

1XR Chainring (To Fit Shimano XT/XTR)

£57.99  
Was  £63.45   | Save  £5.46   (9%)
Available Sizes

Halo

1mm Cassette Spacer

£2.49
Available Sizes

FSA

1x12 Alloy Spider For Bosch Gen4 (104 BCD)

£33.95
Available Sizes

GT Bicycles

2 Bolt ISCG Mount

£34.99
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The range of transmission components & spares we carry is huge - we aim to support a wide range of customers with their complete range of transmission requirements. Parts within the range include both road bike and mountain bike components. We have broken down the range of transmission parts into a good level of sub-categories to make it easier than ever for you to find exactly what you need.

There are chainrings, chains, road bike chainsets, cassettes and chainrings - sold alongside electric mountain bike components and gearing components, including gear levers and shifters. Some of the most popular products within the range include bottom brackets and chain devices. There are a range of brands represented within this collection, including Shimano, KMC, Praxis Works, Hope Technology and bike manufacturers such as Cannondale.