Bike Drivetrains & Gear Parts

Your bike drivetrain consists of all the parts that allow you to pedal and move your bike. Shop our range of drivetrains and gear parts at Decathlon. We have everything you need to take your drivetrain system up a gear.
264 items
DECATHLON 10-Speed Bike Chain
DECATHLON 10-Speed Bike Chain
Rate: 4.5 stars, 397 votes
£14.99
Was £15.99
DECATHLON 1-Speed Bike Chain
DECATHLON 1-Speed Bike Chain
Rate: 4.3 stars, 318 votes
£9.99
DECATHLON 11-Speed Quick Release Links - Twin-Pack
DECATHLON 11-Speed Quick Release Links - Twin-Pack
Rate: 4.6 stars, 313 votes
£8.99
Was £9.99
DECATHLON Universal Derailleur Cable - Stainless Steel
DECATHLON Universal Derailleur Cable - Stainless Steel
Rate: 4.7 stars, 1035 votes
£3.99
DECATHLON 12x25 8-Speed Cassette
DECATHLON 12x25 8-Speed Cassette
Rate: 4.4 stars, 150 votes
£16.99
KMC KMC 12 Speed Bike Chain X12 126 links
KMC KMC 12 Speed Bike Chain X12 126 links
£32.99
KMC KMC 10 Speed Bike Chain X10 114 links
KMC KMC 10 Speed Bike Chain X10 114 links
£23.99
DECATHLON 10-Speed 11x28 Road Bike Cassette
DECATHLON 10-Speed 11x28 Road Bike Cassette
Rate: 4.3 stars, 290 votes
£19.99
Was £27.99
DECATHLON 3-Speed Derailleur Shifter
DECATHLON 3-Speed Derailleur Shifter
Rate: 4.2 stars, 292 votes
£10.99
DECATHLON Quick Release Links for 10-speed Chain x2
DECATHLON Quick Release Links for 10-speed Chain x2
Rate: 4.4 stars, 620 votes
£7.99
Was £8.99
DECATHLON Crank Arm Tightening Bolts
DECATHLON Crank Arm Tightening Bolts
Rate: 4.5 stars, 221 votes
£3.99
Was £4.99
DECATHLON 11-Speed Bike Chain
DECATHLON 11-Speed Bike Chain
Rate: 4.4 stars, 304 votes
£17.99
KMC KMC 11 Speed Bike Chain X11 114 links
KMC KMC 11 Speed Bike Chain X11 114 links
£32.99
DECATHLON 12X32 8-Speed Cassette
DECATHLON 12X32 8-Speed Cassette
Rate: 4.4 stars, 755 votes
£12.99
Was £17.99
DECATHLON Derailleur Cable and Housing Kit
DECATHLON Derailleur Cable and Housing Kit
Rate: 4.5 stars, 527 votes
£9.99
Was £12.99
DECATHLON 9-Speed Derailleur Shifters
DECATHLON 9-Speed Derailleur Shifters
Rate: 4.0 stars, 116 votes
£13.99
Was £15.99
KMC KMC 5-8 Speed Bike Chain Z8 7.3mm 114 links
KMC KMC 5-8 Speed Bike Chain Z8 7.3mm 114 links
Rate: 4.2 stars, 73 votes
£9.99
SHIMANO 11-Speed Road/Mountain Bike Chain Shimano 105 CN-HG601 116L Quick Link
SHIMANO 11-Speed Road/Mountain Bike Chain Shimano 105 CN-HG601 116L Quick Link
Rate: 4.6 stars, 325 votes
£25.99
DECATHLON 8-Speed Derailleur Shifter
DECATHLON 8-Speed Derailleur Shifter
Rate: 4.0 stars, 136 votes
£12.99
Was £14.99
DECATHLON 7-Speed Derailleur Shifter
DECATHLON 7-Speed Derailleur Shifter
Rate: 4.3 stars, 289 votes
£10.99
Was £11.99
DECATHLON Bike Derailleur Housing Cable Outer - Black
DECATHLON Bike Derailleur Housing Cable Outer - Black
Rate: 4.5 stars, 977 votes
£4.99
£2.50/m
DECATHLON Derailleur Dropout Replacement
DECATHLON Derailleur Dropout Replacement
Rate: 4.1 stars, 135 votes
£4.99
SHIMANO HG53 Tiagra / Deore 9S Chain
SHIMANO HG53 Tiagra / Deore 9S Chain
Rate: 4.4 stars, 296 votes
£17.99
SRAM SRAM 10 Speed Bike Chain PC1031 114 links
SRAM SRAM 10 Speed Bike Chain PC1031 114 links
£19.99
SRAM SRAM 11 Speed Bike Chain PC1130 114 links
SRAM SRAM 11 Speed Bike Chain PC1130 114 links
£21.99
DECATHLON Triple Chainwheel Front Derailleur
DECATHLON Triple Chainwheel Front Derailleur
Rate: 4.3 stars, 387 votes
£14.99
SRAM SRAM 9 Speed Bike Chain PC951 114 links
SRAM SRAM 9 Speed Bike Chain PC951 114 links
£17.99
DECATHLON 3- to 8-Speed Quick Release Chain Links - Pack of
DECATHLON 3- to 8-Speed Quick Release Chain Links - Pack of
Rate: 4.6 stars, 876 votes
£5.99
SRAM SRAM 7-8 Speed Bike Chain PC850 114 links
SRAM SRAM 7-8 Speed Bike Chain PC850 114 links
£14.99
DECATHLON 6-Speed 14x28 Screw-On Freewheel
DECATHLON 6-Speed 14x28 Screw-On Freewheel
Rate: 4.2 stars, 274 votes
£14.99
DECATHLON Quick Release Links for 1-speed Bike Chain x 2
DECATHLON Quick Release Links for 1-speed Bike Chain x 2
Rate: 4.3 stars, 167 votes
£5.99
DECATHLON 8 to 9 Speed Rear Derailleur
DECATHLON 8 to 9 Speed Rear Derailleur
Rate: 4.3 stars, 17 votes
£24.99
SRAM 11-Speed Bike Chain SRAM PC1110
SRAM 11-Speed Bike Chain SRAM PC1110
Rate: 4.5 stars, 214 votes
£14.99
BERTIN Front Derailleur Altus FD-M313-6 3x 7/8 Speed
BERTIN Front Derailleur Altus FD-M313-6 3x 7/8 Speed
Rate: 4.5 stars, 90 votes
£19.99
DECATHLON 11-Speed 11X28 Road Bike Cassette
DECATHLON 11-Speed 11X28 Road Bike Cassette
Rate: 4.1 stars, 174 votes
£24.99
Was £34.99
ELOPS 133 mm Topaz Square Taper Bottom Bracket
ELOPS 133 mm Topaz Square Taper Bottom Bracket
Rate: 2.5 stars, 2 votes
£7.99
DECATHLON NEOPRENE BIKE CHAINSTAY COVER
DECATHLON NEOPRENE BIKE CHAINSTAY COVER
Rate: 4.2 stars, 496 votes
£9.99
KMC KMC E12 EPT E-Bike Chain
KMC KMC E12 EPT E-Bike Chain
Sold and shipped by Go Cycle Shop
£62.99
KMC KMC X12 EPT Chain
KMC KMC X12 EPT Chain
Sold and shipped by Go Cycle Shop
£44.99
SHIMANO 11-Speed 11x32 105 Cassette CS-R7000
SHIMANO 11-Speed 11x32 105 Cassette CS-R7000
Rate: 4.8 stars, 191 votes
£49.99