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
OLAIAN
REEBOK
ROXY
SIMOND
TAYLORMADE
TRIBAN
TARMAK
UMBRO
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
Mountain Biking
Mountain Bike Drivetrain and Gear Parts
Mountain Bike Derailleurs
Mountain Bike Derailleurs
Shop front and rear mountain bike derailleurs from Decathlon with leading brands available including Shimano and Sram. Derailleurs provide tension and pull that allows you to change gears.
Mountain Bike Cassettes
Bike Chains
Bottom Bracket
Mountain Bike Cranksets
Derailleur Hanger
Mountain Bike Gear Shifters
Bike Gear Cables and Cable Ends
Bike Chainrings
See more
Filters (1)
21 items
Most relevant
derailleur position
rear - sprockets
8
number of speeds
6 speeds
1
7 speeds
2
8 speeds
2
9 speeds
1
10 speeds
3
11 speeds
1
product nature
derailleur
14
derailleur pulley
7
brands
SHIMANO
SHIMANO
21
BBB
5
DECATHLON
4
SRAM
3
BERTIN
1
CAMPAGNOLO
1
price
Minimum
Maximum
Sellers
Sprocket and Gear Ltd
17
Decathlon
4
Clear all (1)
SHIMANO 7/8-Speed Rear Derailleur Acera M3020
4.3
3
Rate: 4.3 stars, 3 votes
£27.99
SHIMANO 9-Speed Rear Derailleur Alivio M3100
4.5
60
Rate: 4.5 stars, 60 votes
£31.49
£42.99
SHIMANO Rear Derailleur 6/7-Speed Shimano Tourney TY300
4.7
175
Rate: 4.7 stars, 175 votes
£11.99
SHIMANO Shimano Jockey wheels 11T Deore, LX, SLX, 105, Tiagra RD-5700
5
1
Rate: 5.0 stars, 1 votes
Sold and shipped by Sprocket and Gear Ltd
£11.59
SHIMANO Shimano Jockey wheels 11T Dura Ace, 11 Speed RD-9000 9070
Sold and shipped by Sprocket and Gear Ltd
£41.49
SHIMANO Shimano FD-R3000-B Sora Front Derailleur Clamp-On
Sold and shipped by Sprocket and Gear Ltd
£34.74
SHIMANO Shimano Tiagra FD-4700-F Front Derailleur Braze On
Sold and shipped by Sprocket and Gear Ltd
£42.49
SHIMANO Shimano RD-M410 Pulley Set 8 Speed 13T Jockey Wheels
Sold and shipped by Sprocket and Gear Ltd
£8.94
SHIMANO Shimano Acera 7/8 speed Rear derailleur RD-M360-SGS-L
Sold and shipped by Sprocket and Gear Ltd
£33.49
SHIMANO Shimano RD-5800 GS 11T Pulley Wheel Set 105 SLX Deore Metrea
Sold and shipped by Sprocket and Gear Ltd
£11.98
SHIMANO Shimano Jockey wheels 11T Ultegra RD-6800
Sold and shipped by Sprocket and Gear Ltd
£20.97
SHIMANO Shimano rear derailleur 9 speed Altus RD M2000 SGS
Sold and shipped by Sprocket and Gear Ltd
£35.98
SHIMANO Shimano Tiagra FD-4700-BSM Front Derailleur 31.8mm
Sold and shipped by Sprocket and Gear Ltd
£36.98
SHIMANO Shimano Tiagra FD-4700-BL Front Derailleur 34.9mm
Sold and shipped by Sprocket and Gear Ltd
£41.97
SHIMANO Shimano RD-R8000 Pulley Set Ultegra GRX
Sold and shipped by Sprocket and Gear Ltd
£21.74
SHIMANO Shimano Tourney RD-TZ500 Direct Mount 6 Speed
Sold and shipped by Sprocket and Gear Ltd
£23.49
SHIMANO Shimano 105 FD-5801-BL Front Derailleur 2 x 11 Speed
Sold and shipped by Sprocket and Gear Ltd
£35.44
SHIMANO Shimano Acera RD-M3020 7/8 Speed Rear Derailleur SGS Long Cage
Sold and shipped by Sprocket and Gear Ltd
£33.98
SHIMANO Shimano Sora RD-R3000 9 Speed Derailleur - GS / Medium Cage
Sold and shipped by Sprocket and Gear Ltd
£44.49
SHIMANO Shimano FD-TZ500-DS6 Tourney Front Derailleur Clamp-On
Sold and shipped by Sprocket and Gear Ltd
£11.98
SHIMANO Pair of Jockey Wheels for Deore 10/11-Speed Derailleurs
4
1
Rate: 4.0 stars, 1 votes
£9.99