Clocks Go Back 25 October – Light Up Your Ride With Autumn Essentials

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12 Speed Chainsets

Precision-matched 12 speed chainsets from Shimano GRX, Shimano Deore and Shimano Ultegra, made for smooth, reliable shifting on 12 speed drivetrains. Keep your groupset running at its best or plan your next upgrade with parts you can trust.

Free UK delivery on orders over £50, with BIKEPARTS+ rewards on every purchase.

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186 products

Shimano Ultegra FC-R8100 12-speed double chainset BIKEPARTS+
Shimano Ultegra
Shimano Ultegra FC-R8100 12-speed double chainsetFrom £127.75£299.99−57%
Shimano 105 FC-R7100 double 12-speed chainset, HollowTech II BIKEPARTS+
Shimano 105
Shimano 105 FC-R7100 double 12-speed chainset, HollowTech IIFrom £86.42£159.99−46%
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 50 / 34T - 165mm BIKEPARTS+
Shimano Ultegra
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 50 / 34T - 165mm 5.0 · 1 review £235.51£299.99−21%
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 52 / 36T - 165mm BIKEPARTS+
Shimano Ultegra
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 52 / 36T - 165mm£179.00£299.99−40%
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 50 / 34T - 160mm BIKEPARTS+
Shimano Ultegra
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 50 / 34T - 160mm£156.95£299.99−48%
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Shimano Deore FC-M6100 Deore chainset, 12-speed, 52 mm chainline, 32T
Shimano Deore
Shimano Deore FC-M6100 Deore chainset, 12-speed, 52 mm chainline, 32TFrom £73.34£99.99−27%
Shimano GRX FC-RX610 Chainset 46 / 30 Double - 12-Speed - 2 Piece Design - 165mm BIKEPARTS+
Shimano GRX
Shimano GRX FC-RX610 Chainset 46 / 30 Double - 12-Speed - 2 Piece Design - 165mm 5.0 · 1 review £87.07£179.99−52%
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 52 / 36T - 160mm BIKEPARTS+
Shimano Ultegra
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 52 / 36T - 160mm 5.0 · 1 review £162.95£299.99−46%
Shimano Deore XT FC-M8120 XT Crank set without ring, 12-speed, 55 mm chainline BIKEPARTS+
Shimano Deore XT
Shimano Deore XT FC-M8120 XT Crank set without ring, 12-speed, 55 mm chainline£99.99£149.99−33%
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 165 mm 50 / 34T; black BIKEPARTS+
Shimano 105
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 165 mm 50 / 34T; black 4.0 · 1 review £92.95£159.99−42%
Shimano Deore XT FC-M8100 XT Crank set without ring; 12-speed; 52 mm chainline; 165 mm Sold out
Shimano Deore XT
Shimano Deore XT FC-M8100 XT Crank set without ring; 12-speed; 52 mm chainline; 165 mm£148.19£154.99−4%
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 50 / 34T - 170mm BIKEPARTS+
Shimano Ultegra
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 50 / 34T - 170mm£235.51£299.99−21%
Shimano Deore XT FC-M8200 XT Crank set without ring, 12-speed, 55mm chainline, 160mm BIKEPARTS+
Shimano Deore XT
Shimano Deore XT FC-M8200 XT Crank set without ring, 12-speed, 55mm chainline, 160mm£96.95£159.99−39%
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 172.5 mm 50 / 34T; black BIKEPARTS+
Shimano 105
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 172.5 mm 50 / 34T; black£139.62£159.99−13%
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 165 mm 52 / 36T; black BIKEPARTS+
Shimano 105
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 165 mm 52 / 36T; black£99.00£159.99−38%
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 170 mm 50 / 34T; black BIKEPARTS+
Shimano 105
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 170 mm 50 / 34T; black 5.0 · 1 review £93.95£159.99−41%
Shimano Dura-Ace FC-R9200 12-speed double chainset BIKEPARTS+
Shimano Dura-Ace
Shimano Dura-Ace FC-R9200 12-speed double chainsetFrom £256.32£549.99−53%
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 52 / 36T - 172.5mm BIKEPARTS+
Shimano Ultegra
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 52 / 36T - 172.5mm£127.75£299.99−57%
Shimano Deore XT FC-M8100/FC-M8120/FC-M8130 Crank set without ring, 12-speed
Shimano Deore XT
Shimano Deore XT FC-M8100/FC-M8120/FC-M8130 Crank set without ring, 12-speedFrom £94.99£149.99−37%
Shimano SLX FC-M7100/FC-M7120 Crank set without ring, 12-speed Sold out
Shimano SLX
Shimano SLX FC-M7100/FC-M7120 Crank set without ring, 12-speed£61.95
Shimano Deore FC-M6100 chainset, 12-speed, 52 mm chainline BIKEPARTS+
Shimano Deore
Shimano Deore FC-M6100 chainset, 12-speed, 52 mm chainlineFrom £66.33£99.99−34%
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 52 / 36T - 170mm BIKEPARTS+
Shimano Ultegra
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 52 / 36T - 170mm£261.68£299.99−13%
Shimano 105 FC-RS520 double 12-speed chainset; 165 mm 50 / 34T; black BIKEPARTS+
Shimano 105
Shimano 105 FC-RS520 double 12-speed chainset; 165 mm 50 / 34T; black£89.71£154.99−42%
Shimano Deore FC-M6100 Deore chainset, 12-speed, 52 mm chainline, 30T BIKEPARTS+
Shimano Deore
Shimano Deore FC-M6100 Deore chainset, 12-speed, 52 mm chainline, 30TFrom £66.33£99.99−34%
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 50 / 34T - 172.5mm BIKEPARTS+
Shimano Ultegra
Shimano Ultegra FC-R8100 Double Chainset - 12-Speed - 50 / 34T - 172.5mm£179.00£299.99−40%
Shimano GRX FC-RX610 Chainset 40T - Single - 12-Speed - 2 Piece Design - 165 mm
Shimano GRX
Shimano GRX FC-RX610 Chainset 40T - Single - 12-Speed - 2 Piece Design - 165 mm£90.95£169.99−46%
Shimano GRX FC-RX820 Chainset 48 / 31 - Double - 12-Speed - Hollowtech II - 170mm BIKEPARTS+
Shimano GRX
Shimano GRX FC-RX820 Chainset 48 / 31 - Double - 12-Speed - Hollowtech II - 170mm£120.95£239.99−50%
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 160 mm 50 / 34T; black BIKEPARTS+
Shimano 105
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 160 mm 50 / 34T; black£134.00£159.99−16%
Shimano Deore FC-MT510 chainset; 12-speed; 52 mm chainline; 32T; 175 mm
Shimano Deore
Shimano Deore FC-MT510 chainset; 12-speed; 52 mm chainline; 32T; 175 mm£89.99
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 170 mm 52 / 36T; black
Shimano 105
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 170 mm 52 / 36T; black£93.95£159.99−41%
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 172.5 mm 52 / 36T; black
Shimano 105
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 172.5 mm 52 / 36T; black£95.95£159.99−40%
Shimano GRX FC-RX610 Chainset 38T - Single - 12-Speed - 2 Piece Design - 165 mm
Shimano GRX
Shimano GRX FC-RX610 Chainset 38T - Single - 12-Speed - 2 Piece Design - 165 mm£89.23£169.99−48%
Shimano 105 FC-RS520 double 12-speed chainset, 50/34T BIKEPARTS+
Shimano 105
Shimano 105 FC-RS520 double 12-speed chainset, 50/34T£89.71£154.99−42%
Shimano Ultegra FC-R8100-P 12-speed double Power Meter chainset
Shimano Ultegra
Shimano Ultegra FC-R8100-P 12-speed double Power Meter chainsetFrom £571.89£999.99−43%
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 160 mm 52 / 36T; black
Shimano 105
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 160 mm 52 / 36T; black£104.00£159.99−35%
Autumn Essentials: lights, mudguards and winter kit for darker, wetter ridesShop the collection
Free UK delivery on orders over £50