Welcome to the New Decathlon Experience
Sign up or log in
Sports
Sports
Popular
Cycling
Cycling
Hiking
Hiking
Running
Running
Fitness & Gym
Fitness & Gym
Camping
Camping
Football
Football
Swimming
Swimming
Kayaking
Kayaking
More sports
Country Sports
Country Sports
Fishing
Fishing
Golf
Golf
Horse Riding
Horse Riding
Mountain Biking
Mountain Biking
Road Cycling
Road Cycling
Roller Skating
Roller Skating
Stand Up Paddle
Stand Up Paddle
Tennis
Tennis
Trekking
Trekking
Yoga
Yoga
Basketball
Basketball
Rugby
Rugby
Scootering
Scootering
Climbing
Climbing
Trail Running
Trail Running
Snowboarding
Snowboarding
Mountaineering
Mountaineering
Slacklines
Via Ferrata, Canyoning and Caving
Via Ferrata, Canyoning and Caving
Winter Sports
Aqua Fitness
Water Polo
Water Polo
Surf
Surf
Sailing
Sailing
Snorkelling
Snorkelling
Scuba Diving
Scuba Diving
Spearfishing
Spearfishing
Water Skiing and Wakeboarding
Kitesurfing and Windsurfing
Kitesurfing and Windsurfing
Wing Foil
Wing Foil
Kiting
Kiting
Frisbee and Boomerangs
Skiing
Skiing
Cross-Training
HIIT Training
Bodybuilding
Boxing
Boxing
Pilates
Pilates
Gymnastics
Gymnastics
Martial Arts
Martial Arts
Kids PE & Gym
Kids PE & Gym
Dance
Dance
Gym Gear for Babies
Gym Gear for Babies
Athletics
Athletics
Triathlon
Triathlon
Orienteering
Nordic Walking
Nordic Walking
Power Walking
Power Walking
Cricket
Cricket
Handball
Handball
Field Hockey
Field Hockey
American Football
Baseball
Baseball
Roller Hockey
Roller Hockey
Netball
Volleyball and Beach Volleyball
Volleyball and Beach Volleyball
Badminton
Badminton
Table Tennis
Table Tennis
Squash
Squash
Padel
Padel
Frontenis
Beach Tennis
Basque Pelota
Ice Hockey
Ice Hockey
Ice & Figure Skating
Ice & Figure Skating
Skateboarding and Longboarding
Skateboarding and Longboarding
Archery
Archery
Darts
Darts
Snooker and Pool
Snooker and Pool
Boules and Petanque
Boules and Petanque
Skittles and Palet
Wallball
Carp Fishing
Carp Fishing
Predator fishing
Predator fishing
Coarse & Match Fishing
Coarse & Match Fishing
Sea fishing
Sea fishing
Teqball
Racketball
Race Walking
Floorball
Floorball
Table Football
Bushcraft - Bivouac
Bushcraft - Bivouac
See all sports
Women
Women
Shop all Women
Clothing
Clothing
Shoes
Shoes
Activewear
Activewear
Swimwear
Swimwear
Loungewear
Bikes
Bikes
Athleisure
Plus Size Clothing
Plus Size Clothing
Bags and Accessories
Bags and Accessories
Sales
Sales
Men
Men
Shop all Men
Clothing
Clothing
Shoes
Shoes
Bikes
Bikes
Activewear
Activewear
Swimwear
Swimwear
Bags and Accessories
Bags and Accessories
Loungewear
Athleisure
Plus Size Clothing
Sales
Cold Weather Collection
Base Layers
Kids
Kids
Shop all Kids
Clothing
Clothing
Shoes
Shoes
Outdoor Activities
Outdoor Activities
Bags and Accessories
Bags and Accessories
Baby and Toddlers
Baby and Toddlers
Swimwear and Beachwear
Swimwear and Beachwear
Back To School
Sales
Kids Cycling
Accessories
Accessories
Shop all Accessories
Sports Electronics
Sports Electronics
Bags
Bags
Footwear Accessories
Footwear Accessories
Water Bottles, flasks and protein shakers
Water Bottles, flasks and protein shakers
Sunglasses
Face Masks
Umbrellas
Navigational Equipment
Navigational Equipment
Hats, Headwear and Gloves
Hats, Headwear and Gloves
Rain Poncho and Capes
Towel and Towel Ponchos
Activity Trackers
Nutrition and Body Care
Nutrition and Body Care
Shop all Nutrition and Body Care
Protein
Protein
Food and Snacks
Food and Snacks
Vitamins & Supplements
Vitamins & Supplements
Hydration
Hydration
Energy Supplements
Energy Supplements
Pre, Intra and Post-Workout
Pre, Intra and Post-Workout
Protein Shakers & Water Bottles
Protein Shakers & Water Bottles
Recovery and Injury
Recovery and Injury
Skin and Body Care
Skin and Body Care
Pre, Intra and Post-Workout
Workshop Services and Spare Parts
Workshop Services and Spare Parts
Shop all Workshop Services and Spare Parts
Repair Your Product Yourself
Repair Your Product Yourself
Repair Your Product With Us
Repair Your Product With Us
Second Life Products
Deals
Deals
Shop all Deals
Mens Sale
Womens Sale
Kids Sale
Running Sale
Ski Sale
Fitness Sale
Cycling Sale
Hiking Sale
Swimming Sale
Camping Sale
Football Sale
Sailing Sale
Golf Sale
Water Sports Sale
Gym & Dance Sale
Horse Riding Sale
Fishing Sale
Snowboard Sale
Up to 50% off
Brands
Brands
Designed by Decathlon
QUECHUA
Mountain sports
ROCKRIDER
Outdoor cycling
DOMYOS
Fitness & gym
KIPSTA
Team sports
ARTENGO
Racket sports
TRIBORD
Water sports
Brands we love
ADIDAS
SALOMON
THULE
QUIKSILVER
GARMIN
PUMA
ASICS
CANTERBURY
CONTINENTAL
FORCLAZ
ITIWIT
KALENJI
NABAIJI
REEBOK
ROXY
SIMOND
TAYLORMADE
TRIBAN
TARMAK
VAN RYSEL
WEDZE
WILSON
YONEX
See all brands
Help & support
Find a store
Sports
Sports
Women
Women
Men
Men
Kids
Kids
Accessories
Accessories
Nutrition and Body Care
Nutrition and Body Care
Workshop Services and Spare Parts
Workshop Services and Spare Parts
Deals
Deals
Brands
Brands
Sports
Cycling
Bike Drivetrain and Gear Parts
Bike Drivetrain & 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.
Derailleurs
Derailleur Hanger
Cranksets
Bike Chains
Bike Gear Shifters
Bike Cassettes
Bike Chainrings
Bottom Bracket
Bike Gear Cables and Cable Ends
See more
Filters (1)
46 items
Most relevant
product nature
gear shifter
09
cassette
08
chain
08
chain quick link
05
derailleur
03
derailleur cable
03
free wheel
03
bottom bracket screw
01
cable end cap
01
chainset
01
See all
number of speeds
1 speed
04
3 speeds
06
5 speeds
05
6 speeds
05
7 speeds
07
8 speeds
07
9 speeds
07
10 speeds
06
11 speeds
04
number of chainrings
triple chainring
01
derailleur position
rear - sprockets
07
front - chainrings
06
bottom bracket type
squared
01
brands
DECATHLON
SHIMANO
94
SRAM
88
DECATHLON
46
STRONGLIGHT
40
SUNRACE
27
KMC
25
BBB
12
FSA
09
VAN RYSEL
07
FIBRAX
04
See all
colors
grey
02
price
Minimum
Maximum
Sellers
Decathlon
46
Clear all (1)
DECATHLON 11-Speed Bike Chain
4.4
291
Rate: 4.4 stars, 291 votes
£17.99
DECATHLON Derailleur Cable and Housing Kit
4.5
515
Rate: 4.5 stars, 515 votes
£9.99
Was £12.99
DECATHLON 10-Speed Bike Chain
4.5
386
Rate: 4.5 stars, 386 votes
£14.99
Was £15.99
DECATHLON 3-Speed Left Grip Shifter
4.3
468
Rate: 4.3 stars, 468 votes
£8.99
DECATHLON 6-Speed Grip Shifter
4.3
429
Rate: 4.3 stars, 429 votes
£8.99
Was £9.99
DECATHLON 12X32 8-Speed Cassette
4.4
741
Rate: 4.4 stars, 741 votes
£12.99
Was £17.99
DECATHLON 1-Speed Bike Chain
4.3
314
Rate: 4.3 stars, 314 votes
£9.99
DECATHLON 9-Speed Bike Chain
4.2
587
Rate: 4.2 stars, 587 votes
£14.99
DECATHLON Electric Bike 10-Speed Chain
4.2
70
Rate: 4.2 stars, 70 votes
£29.99
Was £34.99
DECATHLON Quick Release Links for 9-Speed Chain - Twin-Pack
4.5
483
Rate: 4.5 stars, 483 votes
£6.99
Was £7.99
DECATHLON Universal Anti Friction Derailleur Cable
4.6
565
Rate: 4.6 stars, 565 votes
£4.99
£2.27/m
DECATHLON 5-Speed Grip Shifter
4.1
113
Rate: 4.1 stars, 113 votes
£9.49
DECATHLON 8-Speed Derailleur Shifter
4
133
Rate: 4.0 stars, 133 votes
£12.99
Was £14.99
DECATHLON 11-Speed 11X28 Road Bike Cassette
4.1
171
Rate: 4.1 stars, 171 votes
£24.99
Was £34.99
DECATHLON 9-Speed Derailleur Shifters
4
115
Rate: 4.0 stars, 115 votes
£13.99
Was £15.99
DECATHLON 11-Speed Quick Release Links - Twin-Pack
4.6
305
Rate: 4.6 stars, 305 votes
£8.99
Was £9.99
DECATHLON 7-Speed Derailleur Shifter
4.3
287
Rate: 4.3 stars, 287 votes
£10.99
Was £11.99
DECATHLON Quick Release Links for 10-speed Chain x2
4.4
619
Rate: 4.4 stars, 619 votes
£7.99
Was £8.99
DECATHLON Universal Derailleur Cable - Stainless Steel
4.7
1006
Rate: 4.7 stars, 1006 votes
£3.99
DECATHLON 9-Speed 11x32 Bike Cassette
4.5
325
Rate: 4.5 stars, 325 votes
£15.99
Was £19.99
DECATHLON Derailleur Dropout Replacement
4.1
134
Rate: 4.1 stars, 134 votes
£4.99
DECATHLON 10-Speed 11x28 Road Bike Cassette
4.3
288
Rate: 4.3 stars, 288 votes
£19.99
Was £27.99
DECATHLON Bike Triple Bottom Bracket - 7, 8, and 9 Speeds
4.1
418
Rate: 4.1 stars, 418 votes
£29.99
DECATHLON 3-Speed Derailleur Shifter
4.2
286
Rate: 4.2 stars, 286 votes
£10.99
DECATHLON Crank Arm Tightening Bolts
4.5
218
Rate: 4.5 stars, 218 votes
£3.99
Was £4.99
DECATHLON Triple Chainwheel Front Derailleur
4.3
383
Rate: 4.3 stars, 383 votes
£14.99
DECATHLON 7-SPEED GRIP SHIFTER
4.4
407
Rate: 4.4 stars, 407 votes
£8.99
Was £9.99
DECATHLON 3- to 8-Speed Quick Release Chain Links - Pack of
4.6
864
Rate: 4.6 stars, 864 votes
£5.99
Was £6.99
DECATHLON 9-Speed 12x25 Road Bike Cassette
4
134
Rate: 4.0 stars, 134 votes
£19.99
DECATHLON Bike Derailleur Housing Cable Outer - Black
4.5
959
Rate: 4.5 stars, 959 votes
£4.99
£2.50/m
DECATHLON Single-Speed Freewheel
4.1
81
Rate: 4.1 stars, 81 votes
£9.99
DECATHLON Cycling Left Crank Arm 175 mm
4.8
4
Rate: 4.8 stars, 4 votes
£13.99
DECATHLON Bike Brake Housing Tips
4.5
489
Rate: 4.5 stars, 489 votes
£2.99
Was £3.29
DECATHLON 3- to 8-Speed Bike Chain
4.5
1386
Rate: 4.5 stars, 1386 votes
£9.99
Was £11.99
DECATHLON 5-Speed 14x28 Screw-On Freewheel
4.2
94
Rate: 4.2 stars, 94 votes
£12.99
DECATHLON 10-Speed Derailleur Shifter
3.3
41
Rate: 3.3 stars, 41 votes
£17.99
DECATHLON 6-Speed 14x28 Screw-On Freewheel
4.2
270
Rate: 4.2 stars, 270 votes
£14.99
DECATHLON 8 to 9 Speed Rear Derailleur
4.4
10
Rate: 4.4 stars, 10 votes
£24.99
DECATHLON 7 SPEED 12x28 CASSETTE
4.4
290
Rate: 4.4 stars, 290 votes
£14.99
Was £15.99
DECATHLON BMX Bike Chain
4.3
123
Rate: 4.3 stars, 123 votes
£9.99
1 of 2