Bicycle Drivetrain Parts

Keep your bike running smoothly with our range of drivetrain parts, from gears and chains to shifters, gear cables and replacement mechs.

Sort by:
Silver alloy pedal crank left-hand - 170mm length
ETC

ETC Cotterless Left-hand Crank Silver Alloy - 170mm

£14.00£11.99
KMC S1 Single Speed /Hub Gear Cycle Chain - Towsure
KMC

KMC S1 Single Speed /Hub Gear Cycle Chain

£5.95£4.99
Prowheel Alloy Triple Chainset 42/34/22T - Black/Silver - Towsure
ETC

Prowheel Alloy Triple Chainset 42/34/22T - Black/Silver

£26.00£18.99
Square Taper Sealed Cartridge Bottom Bracket - 68mm Shell - Towsure
SunRace

Square Taper Sealed Cartridge Bottom Bracket - 68mm Shell

£11.95£10.99
Shimano Tourney TZ-50 Direct Mount Rear Derailleur
Shimano

Shimano Tourney TZ-50 6-7 Speed Rear Mech - Direct Mount

£13.95£12.99
Chrome Steel Left Hand Crank Arm 170mm - Cottered - Towsure
Oxford

Chrome Steel Left Hand Crank Arm 170mm - Cottered

£7.99£5.99
Fibrax Galvanised Brake Cable Inner Wire - Universal
Fibrax

Fibrax Galvanised Brake Inner Wire Universal

£0.99£0.94
Sunrace RDMS30 Rear Derailleur 10,11,12 Speed - Towsure
SunRace

Sunrace RDMS30 Rear Derailleur 10,11,12 Speed

£69.99£64.99
Shimano Tourney Rear Derailleur for Mountain Bike & Hybrid Cycle - Towsure Outdoor Leisure
Shimano

Shimano Tourney RD-TY300 6-7 Speed Rear Derailleur - Direct Mount

£17.99£11.99
M-Wave Alloy Chainset 170mm - 46T 3/32"
M-Wave

M-Wave Alloy Chainset Cotterless 3/32" x 46T 170mm

£29.99£22.99
Cotterless Crank Bottom Bracket Axle Bolts (Pair) - Towsure
Oxford

Cotterless Crank Bottom Bracket Axle Bolts (Pair)

£1.49£1.32
KMC Z8S 6-8-Speed Cycle Chain - Towsure
KMC

KMC Z8S 6-8-Speed Cycle Chain

£10.95£9.99
Shimano TZ20 6-Speed Freewheel 14-28T - Towsure
Shimano

Shimano TZ20 6-Speed Freewheel 14-28T

£23.95£21.99
Microshift Mezzo 3x8 Shifter Pods - Towsure
Microshift

Microshift Mezzo 3x8 Shifter Pods

£28.00£19.99
Raleigh Chainguard 42T Triple Chaingring - Towsure
Raleigh

Raleigh Chainguard 42T Triple Chaingring

£17.58£13.99
SRAM X3 Rear Derailleur 7/8 Speed - Long Cage - Towsure
SRAM

SRAM X3 Rear Derailleur 7/8 Speed - Long Cage

£17.00£15.99
Shimano TX51 Multi-Fit Band-On Front Mech (6-8 Sp) - Towsure
Shimano

Shimano TX51 Multi-Fit Band-On Front Mech (6-8 Sp)

£19.95£17.99
Shimano Easy Shift Thumb Gear Levers 18 Speed Left and Right Set
Shimano

Shimano SL-TX30 18-Speed (6 x 3) Thumb Shifters

£19.95£17.99
XLC 10-Speed Chain Link
XLC

XLC 10-Speed Chain Link

£6.99£5.99
Shimano MF-TZ21 14-28 7-Speed Screw-On Freewheel - Towsure
Shimano

Shimano MF-TZ21 14-28 7-Speed Screw-On Freewheel

£19.99£11.99
Shimano HG20 7-Speed Cassette - 13/28T
Shimano

Shimano HG20 7-Speed Cassette 13-28T

£19.99£17.99
Sram X5 8-9 Speed Rear Derailleur - Towsure
SRAM

Sram X5 8-9 Speed Rear Derailleur

£43.00£39.99
Fibrax Universal Stainless Steel Brake Cable - Black
Fibrax

Fibrax Stainless Brake Cable Universal - Black

£3.99£3.33

Keep your bike running smoothly with our range of drivetrain parts, from gears and chains to shifters, gear cables and replacement mechs.