Trek Bicycle Store of London

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Derailleurs

Shimano 105 Braze-On Front Derailleur
$63.49
Shimano's 105 Braze-On Front Derailleur sports extra-wide beefy pivots, which eliminate flex for lightning-quick shifts. Plus, the clear-coated aluminum body and chrome-plated-steel cage will last for years.
Shimano Deore XT Front Derailleur (E-Type)
$67.99
Shimano's Deore XT Front Derailleur sports a lightweight aluminum cage that's chrome plated to reduce wear. Plus, the body boasts wide parallel pivots that provide fast, smooth and reliable shifts every time. This is an E-Type derailleur, meaning it mounts to the bottom bracket taking the guesswork out of derailleur mounting on full-suspension, carbon-fiber and non-standard frames.
Shimano Deore XT Rear Derailleur (Mid Cage) (Low-Normal)
$136.99
Shimano's Deore XT Rear Derailleur handles the pressure! Its low-normal design moves the chain to the easy-pedaling gears (large cogs) with very little shift-lever pressure so it's easy to shift while climbing. Plus, the wide pivot design increases rigidity and longevity for miles and miles of crisp shifts. This combination of efficiency and light weight have long made the XT a favorite of racers and freeriders alike.
Shimano Ultegra Braze-On Front Derailleur (Triple Chainring)
$89.99
Whether you're attacking a tough climb or cruisin' with a tailwind, you want a front derailleur that shifts quickly and reliably. The Ultegra Front Derailleur does just that with wide pivots for rigid, flex-free shifting, a clear-coated-aluminum body and Shimano's precise engineering.
Shimano Ultegra Clamp-On Front Derailleur
$89.99
If you're looking for a quick-shifting super-light front derailleur, you've found it in Shimano's Ultegra Front Derailleur. Its wide pivots provide flex-free action for surefire shifting every time.
Shimano Ultegra Rear Derailleur
$118.99
Shimano's Ultegra Rear Derailleur benefits from trickle-down technology from Shimano's top-line Dura-Ace model, which means you get awesome shifting at a more affordable price point. This choice derailleur boasts a light and tough cold-forged-aluminum body with a wide pivot design that boosts rigidity to speed and smooth shifts. Plus, the fluorine-coated pivots minimize friction for nearly effortless shifting and the oversize pulleys keep the chain running more smoothly, too. The pulleys also last longer than smaller ones and are sealed to keep out water and dirt.
Shimano Ultegra Rear Derailleur (Long Cage)
$160.99
Shimano's Ultegra rear derailleur benefits from trickled-down Dura-Ace technology for top-notch shifting without the high-end price. It boasts a light and reliable cold-forged-aluminum body with a wide pivot design that boosts rigidity and speeds and smoothes shifts. Plus, the fluorine-coated pivots minimize friction for nearly effortless shifting. The Ultegra features one sealed-bearing pulley and oversize pulleys, which are silky smooth, ultra quiet, high mileage, and designed to keep out dirt and water.
Shimano XTR Rear Derailleur, Low Normal (Medium Cage)
$254.99
There's a good reason why you'll find the XTR Rear Derailleur aboard just about every top-end off-roader. It's super light, durable and shifts like a dream. This cold-forged-aluminum rear derailleur is stiffer than ever and boasts smooth, light-action shifting. The 11-tooth pulleys alternate link contact, reducing wear and smoothing pedaling. Plus, the Low Normal shifting action is super smooth.
Shimano XTR Rear Derailleur, Top Normal (Medium Cage)
$254.99
There's a good reason why you'll find the XTR Rear Derailleur aboard just about every top-end off-roader. It's super light, durable and shifts like a dream. This cold-forged-aluminum rear derailleur is stiffer than ever and boasts smooth, light-action shifting. The 11-tooth pulleys alternate link contact, reducing wear and smoothing pedaling.
SRAM Apex Rear Derailleur (Short-cage)
$99.99
SRAM's Apex Rear Derailleur features cold-forged aluminum construction for sweet shifting, dependability and low weight. Designed for SRAM's 10-speed road drivetrains and featuring their Exact Actuation Technology, Apex will provide you with perfect shifting every time.
SRAM X9 9-speed Front Derailleur (High-clamp, Bottom-pull)
$59.99
SRAM's X9 Front Derailleur sports a forged-aluminum cage and a cutout design for exceptional durability with minimal weight. It provides, crisp, precise action for fast, smooth and reliable shifting season in and season out.
Shimano Deore XT Shadow + Rear Derailleur (Long Cage)
$115.99
Shimano's Deore XT Rear Derailleur uses cold-forged construction and cutting edge technology to deliver crisp shifting, real-world reliability, and trademark precision. Plus-type derailleurs use a lever-actuated clutch spring to prevent chain slap, reduce noise while on the trail, and improve chain engagement when riding over rough terrain. Sealed pulley bearings keep things spinning smoothly, and wide plate construction prevents the derailleur from getting clogged with mud and debris.
Third Eye Chainwatcher
$12.99
- Prevents chain derailment when shifting to inner ring - Adjustable hose-type clamp fits 1-1/8" to 1-3/8" seat tubes
Shimano 105 5800 Rear Derailleur Pulley Set
$19.99
- Upper pulley has larger teeth for increased chain control
Shimano 105 Braze-On Front Derailleur
$52.99
Shimano's 105 Braze-On Front Derailleur sports a cold forged-aluminum body with Shimano's extra wide-pivot design for lightning-quick and super-smooth shifts. The steel cage ensures excellent durability.
Shimano 105 Braze-On Front Derailleur (Triple Chainring)
$52.99
Shimano's 105 Braze-On Front Derailleur sports a cold forged-aluminum body with Shimano's extra wide-pivot design for lightning-quick and super-smooth shifts. The steel cage ensures excellent durability.
Shimano 105 Clamp-On Front Derailleur
$52.99
Shimano's 105 Clamp-On Front Derailleur sports a cold forged-aluminum body with Shimano's extra wide-pivot design for lightning-quick and super-smooth shifts. The steel cage ensures excellent durability.
Shimano 105 Clamp-On Front Derailleur (Triple Chainring)
$52.99
Shimano's 105 Clamp-On Front Derailleur sports a cold forged-aluminum body with Shimano's extra wide-pivot design for lightning-quick and super-smooth shifts. The steel cage ensures excellent durability.
Shimano 105 Rear Derailleur (Long Cage)
$69.99
Shimano's 105 Rear Derailleur delivers high-end function with upscale looks. With a body of light, durable cold-forged aluminum in Shimano's wide-pivot design with their light-action spring, rear shifting is practically effortless and always super smooth. The top pulley stays a uniform distance from each cassette cog ensuring that every shift resonates with the plunk of exact gear engagement.
Shimano 105 Rear Derailleur (Long Cage)
$69.99
Shimano's 105 Rear Derailleur delivers high-end function with upscale looks. With a body of light, durable cold-forged aluminum in Shimano's wide-pivot design with their light-action spring, rear shifting is practically effortless and always super smooth. The top pulley stays a uniform distance from each cassette cog ensuring that every shift resonates with the plunk of exact gear engagement.
Shimano 105 Rear Derailleur (Short Cage)
$85.99
Shimano's 105 Rear Derailleur delivers high-end function with upscale looks. With a body of light, durable cold-forged aluminum in Shimano's wide-pivot design with their light-action spring, rear shifting is practically effortless and always super smooth. The top pulley stays a uniform distance from each cassette cog ensuring that every shift resonates with the plunk of exact gear engagement.
Shimano Acera M3000 9-Speed Rear Derailleur
$61.99
- Cage Length: Long - Chain Wrap Capacity (Teeth): 45 Teeth - Color: Gray - Drivetrain Speeds: 9 - Largest Cog (Teeth): 36 - Rear Der/Shifter Compatibility: Shimano Mountain - Rear Derailleur Mount Type: 10X1 Standard , Shimano Rear Direct Mount
Shimano Alivio Front Derailleur
$43.99
Shimano's Alivio Front Derailleur features wide pivots and a rigid cage for fast shifting and trail-worthy durability. This 9-speed compatible derailleur also gives you clearance for mud guards or wide tires.
Shimano Alivio Rear Derailleur (9-speed)
$71.99
Shimano's Alivio Rear Derailleur is built to withstand the rigors of off-road riding, with a lightweight aluminum body and low-friction pivots for incredibly easy and smooth shifting. And, the Alivio features 11-tooth pulleys, which alternate chain-link contact reducing wear and smoothing pedaling.
Shimano Alivio Shadow Rear Derailleur (9-speed)
$72.99
Shimano's Alivio Shadow Rear Derailleur is built to withstand the rigors of off-road riding, with a lightweight aluminum body and low-friction pivots for incredibly easy and smooth shifting. And, the Alivio features 11-tooth pulleys, which alternate chain-link contact to reduce wear and smooth pedaling. • Cage Length: Long • Chain Wrap Capacity (teeth): 45 teeth • Color: Gray • Drivetrain Speeds: 9 • Largest Cog (teeth): 36 • Rear Der/Shifter Compatibility: Shimano Mountain • Rear Derailleur Mount Type: 10x1 Standard , Shimano Rear Direct Mount
Shimano Alivio T4000 Triple Front Derailleur
$39.99
Shimano's Alivio FD-T4000 Front Derailleur shifts your 3x9-speed setup beautifully. - Drivetrain Speeds: 9 - Double or Triple: Triple - Shifter Compatibility: Shimano Mountain - Front Derailleur Cable Pull: Dual - Front Derailleur Clamp: 28.6mm (1-1/8") , 31.8mm (1-1/4") , 34.9mm (1-3/8") - Function: Top Swing - Max Ring Size: 48T
Shimano CX70 Front Derailleur
$71.99
Shimano's CX70 Front Derailleur was designed from the ground up for the uiquely punishing world of cyclocross. Mud-shedding plates fight back against ice and debris build up. Reinforced pins stiffen the plates for fast shifts under the worst conditions, while special attention has been paid to the derailleur pivots and arms so they shed mud and ice. The cage size is optimized for the close-ratio chainrings common on cyclocross bikes. The CX70 Front Derailleur is available as either a top or bottom pull model to suit your bike.
Shimano Deore M6000 Shadow+ Rear Derailleur
$114.99
Shimano's Deore Shadow+ Rear Derailleur is loaded with mountain bike technology. The Shadow design tucks the rear derailleur closer in to the wheel, reducing damage from rocks, roots, and trail obstacles. When it comes to gear changes, Shimano's Dyna-Sys supplies consistent, smooth shifting across the entire cassette. And the Shadow+ clutch maximizes chain control by virtually eliminating chain slap and excess noise with its integrated cage-tensioning clutch. - For use with Shimano 10-speed drivetrains - High-efficiency drivetrain for aggressive trail riding - Optimized gear combinations and ratios for trail riding - Maximum cog capacity: 41T (medium cage)/43T (long cage) - Compatible with wide range cassette - Silent and stable for technical trail riding - Improved stability and chain retention longevity - Light shifting effort - OPTISLICK cable - Smooth and precise shifting - DYNA-SYS compatible system
Shimano Deore M6000 Triple Front Derailleur
$51.99 - $53.99
Shimano's Deore Front Derailleur delivers smooth shifting and less cadence shock along with top-notch durability. Made for triple-ring set ups, it's 10-speed compatible. You'll get stable performance, even with full suspension MTB, as it shifts properly while the rear suspension handles rough trails and obstacles. - Consistently quiet driving while rear suspension position changes - Custom plate design for single spike gear structure - Chain catcher - Close step (10T) - Efficient cable routing - OPTISLICK cable - Swing Action: side swing - Top Gear Teeth: 40-42T - Chain Line: 50 - Chain Stay Angle: 66-69
Shimano Deore M6020 Double Front Derailleur
$51.99 - $53.99
Features: - Smooth shifting and less cadence shock - Close step (10T) - SIDE SWING construction - Efficient cable routing - OPTISLICK cable - Stable performance on suspension bikes - Shifts properly while rear suspension handles rough trails and obstacles - Consistently quiet driving while rear suspension position changes - Custom plate design for single spike gear structure - Chain catcher - 2x10-speed
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