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Shimano GRX RD-RX400 10-Speed Shadow+ Rear Derailleur - For Double
  • £55.00
  • RRP £64.99
  • Saving you £15

With an integrated chain stabilizer mechanism, the Shimano GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain.Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component worldLow profile Shadow Plus design 10-speed rear derailleur for fast and precise shifting performanceShadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shiftingCompatible with 10-speed HG chainsWide gear ratio compatible up to 11-36TFor use with double chainsetWeight: 303gFor rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner allowing you to adapt to the type of surface ahead.  The adjustable chain stabiliser prevents chain slapping and drops and gives you silent and uninterrupted shifting on rough terrain.

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Shimano GRX RD-RX810 11 Speed Shadow+ Rear Derailleur
  • £109.99

Instead of telling gravel riders what they needed, we asked them what they wanted. Shimano spent two years listening and countless hours speaking with gravel enthusiasts from all over the world. We took to dirt and gravel roads, narrow singletrack paths, creek crossings, and mountain passes to test ourselves and our notions of drop bar cycling. We pinned on race numbers and packed up bikepacking bags. We choked on dust and reveled in mud. And the result of all that riding and all those new friendships? First, Shimano’s Gravel Alliance and now, Shimano GRX, the world’s first dedicated gravel component series.Choice. Shimano’s new GRX line is all about choice. Shimano doesn’t want to pigeonhole the way you ride, or decide for you what the best solution is for your riding style. While we’ve long been fans of double chainring drivetrains, we also recognize the value of a single chainring system. With GRX, Shimano offers both, each with gearing options that allow you to tailor your drivetrain to suit your tastes.With two different derailleur cage lengths, Shimano GRX ensures stable shifting and chain retention across a wide range of gearing options. Looking for maximum range while maintaining road cassette progression? Go with GRX’s 800 series 2x11 RD-RX810 or Di2 RD- RX815 rear derailleurs, designed for close ratio clusters, with 48/31 chainrings and an 11-34 cassette. Paired with 700c x 40mm tires, it delivers a top gear similar to a road bike with 25mm tires and a 50 x 11 gear. And on the low end, with its 31 x 34 combination, you get a gear that early mountain bikers would envy. It is the lowest gear currently on offer for premium road drivetrains (aside from Shimano’s own GRX 2x10 30-36 offering), perfect for climbing loose, dirt and gravel surfaces.Want to drop some weight, simplify your shifting, and still maintain a versatile range? Consider the 1x11 GRX option with either Shimano’s 11-40 or 11-42 cassette and a 40 or 42-tooth equipped crankset, shifted by a RD-RX812 or Di2 RD-RX817 wide ratio rear derailleur. You’ll lose a little, absolute top speed, but still love the 1:1 low gear ratio. If you live in an area without sustained or steep climbs, you might love the smaller gear steps of that same 1x11 front chainring with an 11-34 cassette. Options abound.What about when the weather turns autumnal and you contract a case of cyclocross fever? GRX 1x11 can quickly transform from gravel fun to CX focused with the change of a cassette.No matter the option you select, GRX rear derailleur offerings feature Shimano’s SHADOW Plus chain stabilizer that can be turned on or off depending on conditions. SHADOW Plus revolutionized the mountain bike world and now it’s been tuned for gravel and rough road riding in GRX. With a quieter drivetrain, SHADOW Plus helps you engage with your surroundings and enjoy time outside.Today’s gravel riders demand more of their bikes and of themselves. Shimano GRX gives them the options they need to Explore Beyond, tailoring their drivetrains to suit their needs and exceed their expectations. We’ll see you out there!Designed for riding on rough roads, through gravel and mud, to be able to carry on in comfort, stress-free, to wherever you want, to allow you to achieve that unique sense of accomplishment. The first groupset designed for Gravel riding Explore beyond. Introducing SHIMANO GRX.Game-Changing Innovation.Even on the roads less travelled, our new GRX tech will keep things smooth, silent and safe – with you always in control.Designed from the ground up for gravel adventure.Mix and match components to customise your bike for a wide range of terrains – and ride the way you want!Key Features:Adjustable chain stabilizer prevents chain slapping and drops,Toggle clutch ON/OFF to match the terrain,Switch stabilizer ON/OFF to match the terrain,Gravel-tuned clutch tension,Silent and uninterrupted rear shifting on rough terrain,Low sprocket: Max. 34T/Min. 30T,Total capacity: 42T,Smooth and reliable mixed surface shifting,Compatible with current road DUAL CONTROL LEVER,Maximum front difference: 17T,Top sprocket: Max. 11T/Min. 11T.

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Shimano GRX RD-RX810 11-Speed Shadow+ Rear Derailleur - For Double
  • £93.49
  • RRP £109.99
  • Saving you £15

With an integrated chain stabilizer mechanism, the Shimano GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain.Adjustable chain stabilizer prevents chain slapping and dropsSwitch stabilizer ON/OFF to match the terrainSilent and uninterrupted rear shifting on rough terrainLow sprocket: Max. 34T/Min. 30T / Total capacity: 40TSmooth and reliable mixed surface shiftingCompatible with current road DUAL CONTROL LEVERMaximum front difference: 17T / Top sprocket: Max. 11T/Min. 11TFor rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner allowing you to adapt to the type of surface ahead.  The adjustable chain stabiliser prevents chain slapping and drops and gives you silent and uninterrupted shifting on rough terrain.

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Shimano GRX RD-RX812 11 Speed Shadow+ Rear Derailleur
  • £109.99

Instead of telling gravel riders what they needed, we asked them what they wanted. Shimano spent two years listening and countless hours speaking with gravel enthusiasts from all over the world. We took to dirt and gravel roads, narrow singletrack paths, creek crossings, and mountain passes to test ourselves and our notions of drop bar cycling. We pinned on race numbers and packed up bikepacking bags. We choked on dust and reveled in mud. And the result of all that riding and all those new friendships? First, Shimano’s Gravel Alliance and now, Shimano GRX, the world’s first dedicated gravel component series.Choice. Shimano’s new GRX line is all about choice. Shimano doesn’t want to pigeonhole the way you ride, or decide for you what the best solution is for your riding style. While we’ve long been fans of double chainring drivetrains, we also recognize the value of a single chainring system. With GRX, Shimano offers both, each with gearing options that allow you to tailor your drivetrain to suit your tastes.With two different derailleur cage lengths, Shimano GRX ensures stable shifting and chain retention across a wide range of gearing options. Looking for maximum range while maintaining road cassette progression? Go with GRX’s 800 series 2x11 RD-RX810 or Di2 RD- RX815 rear derailleurs, designed for close ratio clusters, with 48/31 chainrings and an 11-34 cassette. Paired with 700c x 40mm tires, it delivers a top gear similar to a road bike with 25mm tires and a 50 x 11 gear. And on the low end, with its 31 x 34 combination, you get a gear that early mountain bikers would envy. It is the lowest gear currently on offer for premium road drivetrains (aside from Shimano’s own GRX 2x10 30-36 offering), perfect for climbing loose, dirt and gravel surfaces.Want to drop some weight, simplify your shifting, and still maintain a versatile range? Consider the 1x11 GRX option with either Shimano’s 11-40 or 11-42 cassette and a 40 or 42-tooth equipped crankset, shifted by a RD-RX812 or Di2 RD-RX817 wide ratio rear derailleur. You’ll lose a little, absolute top speed, but still love the 1:1 low gear ratio. If you live in an area without sustained or steep climbs, you might love the smaller gear steps of that same 1x11 front chainring with an 11-34 cassette. Options abound.What about when the weather turns autumnal and you contract a case of cyclocross fever? GRX 1x11 can quickly transform from gravel fun to CX focused with the change of a cassette.No matter the option you select, GRX rear derailleur offerings feature Shimano’s SHADOW Plus chain stabilizer that can be turned on or off depending on conditions. SHADOW Plus revolutionized the mountain bike world and now it’s been tuned for gravel and rough road riding in GRX. With a quieter drivetrain, SHADOW Plus helps you engage with your surroundings and enjoy time outside.Today’s gravel riders demand more of their bikes and of themselves. Shimano GRX gives them the options they need to Explore Beyond, tailoring their drivetrains to suit their needs and exceed their expectations. We’ll see you out there!Designed for riding on rough roads, through gravel and mud, to be able to carry on in comfort, stress-free, to wherever you want, to allow you to achieve that unique sense of accomplishment. The first groupset designed for Gravel riding Explore beyond. Introducing SHIMANO GRX.Game-Changing Innovation.Even on the roads less travelled, our new GRX tech will keep things smooth, silent and safe – with you always in control.Designed from the ground up for gravel adventure.Mix and match components to customise your bike for a wide range of terrains – and ride the way you want!Key Features:Adjustable chain stabilizer prevents chain slapping and drops,Switch stabilizer ON/OFF to match the terrain,Gravel-tuned clutch tension,Silent and uninterrupted rear shifting on rough terrain,Smooth and reliable mixed surface shifting,Compatible with current road DUAL CONTROL LEVER,Top sprocket: Max. 11T/Min. 11T,Low sprocket: Max. 42T/Min. 40T,Total capacity: 41T.

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Shimano GRX RD-RX812 11-Speed Shadow+ Rear Derailleur - For Single
  • £93.49
  • RRP £109.99
  • Saving you £15

With an integrated chain stabilizer mechanism, the Shimano GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain.Adjustable chain stabilizer prevents chain slapping & dropsSmooth and reliable mixed surface shiftingCompatible with current road dual control leverTop sprocket: Max. 11T/Min. 11TLow sprocket: Max. 42T/Min. 40TTotal capacity: 31TWith an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features an ON/OFF switch for the chain tensioner. Its compatible with current road dual control lever and gives you precise shifting every time.

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Shimano GRX RD-RX815 Di2 11-Speed Shadow+ Rear Derailleur - For Double
  • £256.49
  • RRP £284.99
  • Saving you £10

With an integrated chain stabiliser mechanism, the Shimano GRX RX 815 Di2 Rear Derailleur provides a quieter experience and shifting security and precision on mixed terrain.Adjustable chain stabiliser prevents chain slapping and dropsSwitch stabiliser ON/OFF to match the terrainSilent and uninterrupted rear shifting on rough terrainLow sprocket: Max. 34T/Min. 30TSuitable for use with double chainsetsFor rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner allowing you to adapt to the type of surface ahead.  The adjustable chain stabiliser prevents chain slapping and drops and gives you silent and uninterrupted shifting on rough terrain.

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Shimano M5100 Deore 11Sp Shadow+ Rear Derailleur - Black - Long Cage}, Black
  • £39.99
  • RRP £49.99
  • Saving you £20

Shimano M5100 Deore 11Sp Shadow+ Rear DerailleurThis 11 speed MTB rear mech is specifically designed to bring even more adventure to your outdoor lifestyle. It features a rock-solid alloy construction, which makes it perfect at withstanding all the intensity that comes with shredding the trails. Shimano has also equipped this model with Shadow Plus technology, which features a super low profile design and an optimised slant angle for super light shifting action on the toughest of rides.Features: Material: Alloy Pin Bushing Finish: Fluorine-coated link pin bushings Use: MTB Speed: 11 speed Cage: SGS Long Cage Profile: Low Pulley Tooth Count: 13T Cable Routing: Direct cable routing Links: Wide links Max Low Sprocket: 51T (1x 12-speed) Capacity: 40T capacity SGS cage Part Number: RDM5100SGSTechnologies: Shadow Plus: Shadow plus features a super low profile design and optimised slant angle for super light shifting action. Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting.Single Tension Spring: Prevents contact with the chainstay resulting in a silent ride.Direct Cable Routing: Direct cable routing prevents snagging from any trail side hazards.13T Pulleys: 13T pulleys and decreased derailleur tension prevent high chain tension in low gears.Springs: Strong return spring for a positive shifting feel. Top normal spring uses the spring to select higher gears.A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano M5120 Deore 10/11 Speed Shadow+ Rear Derailleur Rear Derailleurs
  • £39.99

This MTB rear mech features Shadow Plus technology, which uses its super-low profile design and an optimised slant angle to deliver amazingly light shifting action on the roughest of rides. Shadow Plus also uses a chain stabilising switch that when on will reduce chain bounce in rough terrain, so you can enjoy a more confident shifting experience as you explore the trails. Item Top Features Continued: Profile: Low profile Clutch Option: 41T capacity SGS Long Cage Compatibility: HG-X11 11-speed and HG-X 10-speed compatible Single or Pair: Single Part Numbers: RDM5120SGS Technologies: Shadow Plus: Shadow plus features a super low profile design and optimized slant angle for super light shifting action. Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting. Wide Link: Wide link design for greater torsional rigidity improves shifting response and service life. Single Tension Spring: Single tension spring prevents contact with the chainstay resulting in a silent ride. Top normal spring uses the spring to select higher gears. Strong return spring for a positive shifting feel. Direct Cable Routing: Direct cable routing prevents snagging from any trail side hazards.

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Shimano M5120 Deore 11Sp Shadow Rear Derailleur - Black - Long Cage}, Black
  • £35.99
  • RRP £39.99
  • Saving you £10

Shimano M5120 Deore 10/11 Speed Shadow+ Rear Derailleur The Shimano M5120 Deore 10/11 Speed Shadow+ Rear Derailleur is engineered for the roughest and toughest mountain bike (MTB) riding, as it gives you dependable shifting performance and durability.This MTB rear mechanism features Shadow Plus technology, which uses its super-low profile design and an optimised slant angle to deliver amazingly light shifting action on the roughest of rides. Shadow Plus also uses a chain stabilising switch that when on will reduce chain bounce in rough terrain, so you can enjoy a more confident shifting experience as you explore the trails.Features: Link Material: Alloy Finish: Fluorine-coated link pin bushings Use: MTB Speed: 10/11 speed Size: Long Cage Type: Rear Cable Routing: Direct cable routing Links: Wide links and pivot body Bearing Pulleys: 11T bearing pulleys Max Low Sprocket: 46T (1x10-speed); 42T (2x11/2x10-speed) Profile: Low profile Clutch Option: 41T capacity SGS Long Cage Compatibility: HG-X11 11-speed and HG-X 10-speed compatible Manufacturer's Part Number: RDM5120SGS A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano M6100 Deore 12 Speed Shadow+ Rear Derailleur Rear Derailleurs
  • £64.99

This MTB rear mech features Shadow Plus technology, which uses a super-low profile design and an optimised slant angle for exceptionally light shifting action on the toughest of rides. Shadow Plus also uses a chain stabilising switch that when on will reduce chain bounce in rough terrain, so you can enjoy a more confident shifting experience as you explore the trails. Item Top Features Continued: Profile: Low profile Clutch Option: 41T capacity SGS Long Cage Single or Pair: Single Part Numbers: RDM6100SGS Technologies: Shadow Plus: Shadow plus features a super low profile design and optimized slant angle for super light shifting action. Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting. Wide Link: Wide link design for greater torsional rigidity improves shifting response and service life. Single Tension Spring: Single tension spring prevents contact with the chainstay resulting in a silent ride. Top normal spring uses the spring to select higher gears. Strong return spring for a positive shifting feel. Direct Cable Routing: Direct cable routing prevents snagging from any trail side hazards.

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Shimano M6100 Deore 12Sp Shadow+ Rear Derailleur - Black - Long Cage}, Black
  • £64.99

Shimano M6100 Deore 12Sp Shadow+ Rear DerailleurThis rear mech is engineered for fast and fun MTB rides, as it gives you reliable shifting performance and durability. It Features Shadow Plus technology, which uses a super-low profile design and an optimised slant angle for amazingly light shifting action on the toughest of rides. Shadow Plus also uses a chain stabilising switch that when on will reduce chain bounce in rough terrain, so you can enjoy a more confident shifting experience as you explore the trails.Features: Link and Pivot Body Material: Alloy Finish: Fluorine-coated link pin bushings Use: MTB Speed: 12 speed Size: Long Cage Type: Rear Cable Routing: Direct cable routing Links: Wide links and pivot body Bearing Pulleys: 13T bearing pulleys Max Low Sprocket: 51T (1x 12-speed) Profile: Low profile Clutch Option: 41T capacity SGS Long Cage Single or Pair: SinglePart Numbers: RDM6100SGSTechnologies: Shadow Plus: Shadow plus features a super low profile design and optimized slant angle for super light shifting action. Shadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting. Wide Link: Wide link design for greater torsional rigidity improves shifting response and service life. Single Tension Spring: Single tension spring prevents contact with the chainstay resulting in a silent ride. Top normal spring uses the spring to select higher gears. Strong return spring for a positive shifting feel. Direct Cable Routing: Direct cable routing prevents snagging from any trail side hazards.A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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Shimano M7000 SLX 11-Speed Shadow+ Rear Derailleur - GS - Medium Cage
  • £61.60
  • RRP £76.99
  • Saving you £20

Newly redesigned the Shimano M7000 SLX 11-Speed Shadow+ Rear Derailleur takes cutting edge technology from the XTR and XT groupsets and brings it down to a more affordable price range. Brings Cutting Edge Technology from XTR and XT Level to an Affordable Price PointShadow+ Clutch Mechanism for Excellent Chain RetentionShadow Design Optimised For 40-46t SprocketsDirect Cable Routing Prevents Snagging on Trail Size HazardsSealed Bearing PulleysThe lightweight and low profile design combined with the direct cable routing prevents those unwanted snagging moments on undergrowth or something a little harder, helping to keep your shiny rear derailleur in one piece and still attached to the bike. Drivetrain security goes even further with the Shadow+ Clutch design. As we push our bikes harder dropping a chain is the last thing you need. With Shadow+ dropped chains should be a thing of the past. The M7000 SLX rear derailleur is optimised around 40-46t cassette sprockets, being compatible with a maximum of a 42t cassette when used with a double chainset, or with a 46t if used with a single chainring. Sealed bearing pulleys ensure this derailleur is designed to go the distance. Tough, light weight and great value, SLX M7000 is a great choice for those seeking top performance without having to re-mortgage! 

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