CLOSE
Our Stores
Bikes
Adventure & Gravel
Cyclocross
Electric
Folding
Hybrid
Kids
Leisure
Mountain
Road
Street & Dirt
Triathlon
Urban
Scooters
Ebikes
Electric Mountain Full Suspension
Electric Mountain Hardtail
Electric Road
Electric Hybrid
Components
Bars
Bearings
Bottom Brackets
Brakes
Cables
Cassette
Chain Guides
Chainrings
Chains
Cranks
Cranksets
Derailleur
Dropper Posts
E-bike
Electronic Gearing
Forks
Grips & Tape
Headsets
Inner Tubes
Manufacturer Specific
Pedals
Saddles
Seatposts
Shifters
Stems
Suspension
Tyres
Wheels
Clothing
Baselayers
Bib Shorts
Bib Tights
Body Armour
Eyewear
Gilets
Gloves
Hats
Hoodies
Jackets
Jerseys
Pants
Shoe Covers
Shoes
Shorts
Socks
T-Shirts
Tights
Warmers
Helmets
Kids
Leisure
Mountain
Road
Snow
Spares
Urban
Accessories
Bags
Bar Ends
Bike Maintenance
Bottle Cages
Bottles & Cages
Camera
Camping
Car Racks
Child Seats
Computers
Extras
Frame Protection
Hooks & Hangers
Hydration Packs
Kick Stands
Lights
Locks
Nutrition
Mudguards
Phone
Pumps
Racks
Rider Care
Safety
Sealant
Spares
Stabilisers
Tools
Trailers
Trainers
Tubeless kit
Sale
Brands
Latest News
Login
01993 842396
[email protected]
Contact us
INFO
Hire Bikes
Workshop
Finance
Cycle to work schemes
Hire Bikes
Workshop
Finance
Cycle to work schemes
Menu
Bikes
Adventure & Gravel
Cyclocross
Electric
Folding
Hybrid
Kids
Leisure
Mountain
Road
Street & Dirt
Triathlon
Urban
Scooters
Ebikes
Electric Mountain Full Suspension
Electric Mountain Hardtail
Electric Road
Electric Hybrid
Components
Bars
Bearings
Bottom Brackets
Brakes
Cables
Cassette
Chain Guides
Chainrings
Chains
Cranks
Cranksets
Derailleur
Dropper Posts
E-bike
Electronic Gearing
Forks
Grips & Tape
Headsets
Inner Tubes
Manufacturer Specific
Pedals
Saddles
Seatposts
Shifters
Stems
Suspension
Tyres
Wheels
Clothing
Baselayers
Bib Shorts
Bib Tights
Body Armour
Eyewear
Gilets
Gloves
Hats
Hoodies
Jackets
Jerseys
Pants
Shoe Covers
Shoes
Shorts
Socks
T-Shirts
Tights
Warmers
Helmets
Kids
Leisure
Mountain
Road
Snow
Spares
Urban
Accessories
Bags
Bar Ends
Bike Maintenance
Bottle Cages
Bottles & Cages
Camera
Camping
Car Racks
Child Seats
Computers
Extras
Frame Protection
Hooks & Hangers
Hydration Packs
Kick Stands
Lights
Locks
Nutrition
Mudguards
Phone
Pumps
Racks
Rider Care
Safety
Sealant
Spares
Stabilisers
Tools
Trailers
Trainers
Tubeless kit
Sale
Brands
Clear
CHECK OUR SPECIAL OFFERS OUT HERE!Â
Components »  Derailleur
Home
Components
Derailleur
Filter Results
In Stock at Store
Available to Order
Sale Items Only
Default sorting
Sort by popularity
Sort by price: low to high
Sort by price: high to low
Sort by discount: high to low
Sort by discount: low to high
Showing:
1 - 30 of 521 items
RDM4120 Deore rear derailleur 1011speed Shadow design SGS long cage
Shimano
only colour
£41.99
RDR8000 cable adjusting bolt unit
Shimano
only colour
£3.99
RDM6100 Deore rear derailleur 12speed Shadow SGS long cage
Shimano
only colour
£64.99
RDR3000 Sora rear derailleur 9speed SS
Shimano
only colour
£39.99
Derailleur Hanger ROAD ARC 2014/Forme Curbar
Kellys
only colour
£21.99
105 RDR7000 tension and guide pulley set
Shimano
only colour
£10.99
Derailleur Hanger GRAVEL TAx12 2018
Kellys
only colour
£21.99
RDM7100 SLX 12speed rear derailleur Shadow SGS for single
Shimano
only colour
£84.99
Replaceable Derailleur Hanger Dropout
Wheels Manufacturing
only colour
£26.99
RDM8100 XT 12speed rear derailleur Shadow SGS single
Shimano
only colour
£109.99
Replaceable Derailleur Hanger Dropout
Wheels Manufacturing
only colour
£38.99
RollerBoys Jockey Wheels 11T [BDP-02]
BBB
only colour
£15.99
RDRX400 GRX 10speed rear derailleur Shadow double
Shimano
only colour
£64.99
Alivio M3100SGS 9 Speed Rear Mech in
Shimano
only colour
£42.99
RDM8120 XT 12speed rear derailleur Shadow SGS double
Shimano
only colour
£109.99
Trek-Electra Disc Derailleur Hanger
Bontrager
only colour
£19.99
RDM8100 inner plate SGS
Shimano
only colour
£7.99
GEAR HANGER GH192 CANNONDALE
Marwi
only colour
£14.99
RD-M772 XT GS Shadow design rear derailleur - top normal
Shimano
only colour
£69.99
Sora FD-3300 Braze on 8-speed Front Derailleur
Shimano
only colour
£21.99
RDR2000 Claris 8speed rear derailleur SS
Shimano
only colour
£34.99
RDM8100SGSM8120SGS Deore XT rear mech pulley set
Shimano
only colour
£16.99
Replaceable Derailleur Hanger Dropout
Wheels Manufacturing
only colour
£26.99
2019 Derailleur Hanger - 116
Wheels Manufacturing
only colour
£38.99
Replaceable Derailleur Hanger Dropout
Wheels Manufacturing
only colour
£22.99
Replaceable Derailleur Hanger Dropout
Wheels Manufacturing
only colour
£27.99
Replaceable Derailleur Hanger Dropout
Wheels Manufacturing
only colour
£38.99
Replaceable Derailleur Hanger Dropout
Wheels Manufacturing
only colour
£38.99
GRXRD8000Ultegra11SpeedJockeyWheels
Shimano
only colour
£20.99
RD5701 105 10speed rear derailleur GS max 32T with double cset
Shimano
2 colours +
£54.99
1
2
3
4
5
6
…
18
>
Sign-up for updates
Subscribe for the latest news, promotions and events
from the Mountain Mania Cycles team.
Mountain Mania
About
Contact Us
Your Account
Delivery & Returns
Terms & Conditions
Privacy Policy
Shopping Help
The Road Room
Brands
Cycle to Work Schemes
Hire Bikes
Finance
Workshop
Follow us
Filter Results
×
Price Range
Status
In Stock at Store
Available to Order
Sale Items Only
Brand
4-Jeri
A2Z
Absolute Black
Adie
BBB
BMC
Bontrager
Campagnolo
Cannondale
CeramicSpeed
Cinelli
ETC
Firewire
Garbaruk
Genesis
Giant
HOPE
Kellys
Look
M Part
Marwi
MicroShift
MRP
Orbea
Orro
Problem Solvers
Saracen
Scott
Shimano
Shimano 105
Shimano CUES
Shimano Deore
Shimano Ultegra
Specialized
Sram
Sunrace
SunRace & Sturmey Archer
Tacx
Trek
Union
Wheels Manufacturing
Wolf Tooth
Yeti Cycles
Size
-
10-SPEED 28.6 / 31.8 MM DOUBLE
10-SPEED 34.9 MM TRIPLE
10-SPEED BRAZE-ON DOUBLE
10-SPEED DIRECT MOUNT DOUBLE
10-SPEED E-TYPE E-TYPE MOUNT
10-SPEED LOW CLAMP BAND MOUNT
10-SPEED MID CLAMP BAND MOUNT
10-SPEED TOP SWING DOUBLE
10-SPEED TOP SWING TRIPLE 63-66
10-SPEED, CONVENTIONAL SWING
105 RD5701SS 10 Speed Rear Mech in
10SPD 31.8/34.9MM
10SPD LONG
10SPD MEDIUM
10SPD SHORT
11 SPEED
11-SPEED 28.6 / 31.8 MM DOUBLE
11-SPEED 34.9 MM DOUBLE
11-SPEED BRAZE-ON
11-SPEED BRAZE-ON DOUBLE
11-SPEED DOUBLE
11-SPEED HIGH CLAMP DOUBLE
11SPD LONG
11SPD MEDIUM
11SPD SHORT
12 SPEED
12-SPEED
12-SPEED 28.6 / 31.8 MM DOUBLE
12-SPEED 34.9 MM DOUBLE
12-SPEED BRAZE-ON DOUBLE
12-SPEED DIRECT MOUNT DOUBLE
12-SPEED E-TYPE DOUBLE
12.5 MM
12SPD 44T
28.6 MM
28.6 MM - TOP PULL -CONV. FOR 42T
31.8 MM
31.8 MM - DOWN PULL - CONV. FOR 48T
31.8 MM - TOP PULL - CONV. FOR 48T
32MM
34.9 MM
7 SPEED
7-SPEED WITH BRACKET
7/8 SPEED LONG
7/8-SPEED TOP SWING
7/8-SPEED TOP SWING DOUBLE
7/8-SPEED TOP SWING TRIPLE
7/8/9 SPD LONG CAGE
8/9SPD LONG
8/9SPD MEDIUM
8SPD LONG
9-SPEED BRAZE-ON DOUBLE
9-SPEED CONVENTIONAL SWING TRIPLE 63-66
9-SPEED TOP SWING DOUBLE
9-SPEED, CONVENTIONAL SWING
9-SPEED, DIRECT MOUNT DOUBLE
9X
B/O
BLACK
BRAZE-ON - DOUBLE DOUBLE
CABLE ENDS GEAR BLK"1.2MM
DIMENSIONS=NA
DOUBLE DIRECT MOUNT
DOUBLE E-TYPE MOUNT
DOUBLE LOW CLAMP BAND MOUNT
DOUBLE MID CLAMP BAND MOUNT
DOUBLE MID CLAMP MOUNT BOOST
ESTRADA PRO/BEST OF/WIL
Gear Cable Adjuster 10 Speed
GS - MEDIUM
GS - MEDIUM DIRECT MOUNT
GS - MEDIUM WITH BRACKET
Hanger 07 fits: All Ariel models (12x135mm hangers pair)
Hanger 14 fits: All Mantra 12/13/14, Zen 12/13/14, Kili/Pro/Trail 13/14, Fly 121
Hanger 22 fits: All Ariel models (12x142mm hanger Direct Mount)
M5 X 16MM
MRP FT MECH DECAPITATOR BLK"
MRP LOWER GUIDE PULLEY"
MS M26S SC REAR MECH 8SP"8SP
N/A
NO SIZE
ONE SIZE
ONESIZEONLY
OSPW System Shimano 9200 Pulley Wheels
Pair
PS CHAIN TUG/MECH HANGER BLK"
REAR DRIVE SIDE, 135MM Q/R
REAR DRIVE SIDE, 142X12MM THRU AXLE
REAR DRIVE SIDE, THRU AXLE
REAR KIT, 135MM Q/R
REAR KIT, 142X12MM THRU AXLE
RECORD/11X
Replaceable derailleur hanger / dropout 111
Replaceable derailleur hanger / dropout 118
Replaceable derailleur hanger / dropout 129
Replaceable derailleur hanger / dropout 18
Replaceable derailleur hanger / dropout 22
Replaceable derailleur hanger / dropout 228
Replaceable derailleur hanger / dropout 24
Replaceable derailleur hanger / dropout 254
Replaceable derailleur hanger / dropout 40
Replaceable derailleur hanger / dropout 70
Replaceable derailleur hanger / dropout 76
Replaceable derailleur hanger / dropout 77
RollerBoys Ceramic Jockey Wheels 11T
RollerBoys Jockey Wheels 11T
S-RACE SP856 SB JOCKEY WHEELS"11T
S/SPEED TENSIONER BLACK"
SGS - LONG
ShiftFix Derailleur Hanger
SS - SHORT
SS - SHORT WITH BMX BRACKET
SS - SHORT WITH BRACKET
STANDARD
TACX JOCKEY WHEELS (FITS SRAM 9.0SL(01-02) 9.0(03) X9 (2004 ONLY) X0 (>2005)):
UK
UNIQUE
WIDE
Yeti Derailleur Hanger Kit 303 RDH
Yeti Front Derailleur D Type Cover
MEDIUM