Gear Components

Some bike parts have a longer lifespan than others. Chains, cassettes, and bottom brackets and various other gear components fall under 'routine maintenance' items as they wear out and become less efficient with regular use.

At Sigma Sports we offer a wide range of gear and drivetrain components for all bike types, including road, gravel and mountain bikes with gear components from leading brands like C-Bear, Shimano, SRAM, Campagnolo, CeramicSpeed, Kogel, Wheels Manufacturing and KMC.
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SALE
Kogel Bottom Bracket - PressFit 30 Asymetric (Cannondale)
Kogel
Bottom Bracket - PressFit 30 Asymetric (Cannondale)
From £189.99
RRP £280.00 Save 32%
Kogel Bottom Bracket - BB386EVO
Kogel
Bottom Bracket - BB386EVO
£218.40
RRP £280.00 Save 22%
Magene QED Split Chainring
Magene
QED Split Chainring
£75.00
New In
Shimano FC-R4000 Tiagra Double Chainset 11-speed
Shimano
FC-R4000 Tiagra double chainset 11-speed
From £131.98
RRP £139.99 Save 6%
SRAM T-Type Eagle XG-1295 12 Speed Cassette
SRAM
T-Type Eagle XG-1295 12 speed Cassette
£384.99
RRP £430.00 Save 10%
KMC X8 Chain
KMC
X8 Chain
£11.99
RRP £16.99 Save 29%
New In
Wolf Tooth Components Mark Zero BSA Bottom Bracket
Wolf Tooth Components
Mark Zero BSA Bottom Bracket
£285.00
Campagnolo Super Record 13 Speed Chain
Campagnolo
Super Record 13 Speed Chain
  • 13 Speed
  • New black chrome surface finish
£62.99
CeramicSpeed OSPW RS Alpha Disc Shimano 9250/8150 Pulley Wheels
CeramicSpeed
OSPW RS Alpha Disc Shimano 9250/8150 Pulley Wheels
From £484.00
RRP £515.00 Save 6%
SALE
SRAM Rival AXS DUB Chainset
SRAM
Rival AXS DUB Chainset
From £39.99
RRP £150.00 Save 73%
SRAM Rival XPLR E1 Dub Wide Crank Arms
SRAM
Rival XPLR E1 Dub Wide Crank Arms
  • Compatible with power and non-power AXS spiders and integrated chainrings
  • DUB Wide bottom bracket
  • Aluminum arms optimised for stiffness and light weight
From £64.99
RRP £75.00 Save 13%
Shimano GRX 810 1X Chainset
Shimano
GRX 810 1X Chainset
£172.39
RRP £220.00 Save 22%
Enduro ABEC3 6806 MAX Bottom Bracket Bearing 30x42x7 (Single)
Enduro
ABEC3 6806 MAX Bottom Bracket Bearing 30x42x7 (Single)
£9.44
RRP £17.00 Save 44%
KMC X10SL 10-Speed Chain
KMC
X10SL 10-Speed Chain
£35.00
RRP £57.00 Save 39%
Kogel Bottom Bracket - BB86
Kogel
Bottom Bracket - BB86
From £151.99
SALE
SRAM Force Wide D2 DUB Chainset
SRAM
Force Wide D2 DUB Chainset
£199.00
RRP £430.00 Save 54%
SALE
SRAM Apex D1 DUB Wide Chainset
SRAM
Apex D1 DUB Wide Chainset
£90.99
RRP £120.00 Save 24%
Shimano CS-HG41 7-Speed Cassette, 11-28T
Shimano
CS-HG41 7-Speed Cassette, 11-28T
£12.59
RRP £20.00 Save 37%
KMC DLC12 Waxed Chain 126L
More options available
KMC
DLC12 Waxed Chain 126L
From £72.19
RRP £112.99 Save 36%

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