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Microshift Advent X RD-M6205 Rear MTB Derailleur
  • £59.99

microSHIFT ADVENT X Rear Derailleur 10 SpeedWith a raceworthy weight and the right gearing for any situation, microSHIFT’s top-of-the-line ADVENT X rear derailleur delivers high-end performance without high-end headaches. By using a 10-speed chain and wide range 11-48t cassette with predictable, evenly spaced gear steps, ADVENT X allows you to find the right gear even in challenging conditions. Add in microSHIFT’s proprietary ratchet-and-pawl clutch, larger pulleys with taller teeth for better chain retention, and metric adjustment hardware, and you’ve got everything you want and nothing you don’t. Key Features: Compatible with ADVENT X 10-speed drivetrains only, Compatible with standard 10-speed chains, Ratchet-and-pawl clutch provides chain security and can be turned on and off with a switch, Metric adjustment hardware, Larger pulleys with taller teeth improve chain security and provide higher overall ride height, Aluminum cage,. Specification: Group: ADVENT X,Speed: 10 Speed, Cage Length: Medium Cage, Capacity: 41T, Clutch: Yes, Cage Material: Aluminium, Outer Link Material: Aluminium,Weight: 313g, Compatibility: ADVENT X.

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Shimano GRX RD-RX400 10 Speed Shadow+ Rear Derailleur
  • £59.99
  • RRP £64.99
  • Saving you £8

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,Maximum front T difference: 16T,Silent and uninterrupted rear shifting on rough terrain,Low sprocket: Max. 36T/Min. 30T,Total capacity: 41T,Smooth and reliable mixed surface shifting,Compatible with current 10s road DUAL CONTROL LEVER,Wide range front gearing,Top sprocket: Max. 11T/Min. 11T.

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SRAM Rival 22 11-Speed Rear Derailleur - Medium Cage
  • £60.80
  • RRP £76.00
  • Saving you £20

When it comes down to performance and durability the new Rival 22 rear derailleur matches the top end Force and Red derailleurs with the only difference being a slight weight difference. The derailleur is constructed from an aluminium inner and outer cage as well as an aluminium b-knuckle. Using Exact Actuation, each gear shift is fast and accurate, with the redesigned AeroGlide jockey wheels keeping things quiet and smooth.

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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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SRAM Apex1 11 Speed Rear Derailleur
  • £62.00
  • RRP £79.00
  • Saving you £22

SRAM’s Apex 1 drivetrain gives the gear range and the shifting simplicity to let you simply go where you want. The Apex 1 rear derailleur makes that gearing choice a reality with clean, crisp shifts, thanks to SRAM’s X-Horizon™ geometry and our Roller Bearing Clutch™.X-HORIZON™ design reduces shift force, eliminates ghost shifting and chain slap,Compatible with 10-speed and 11-speed SRAM 1x™ road systems,With CAGE LOCK™ technology, wheel removal and installation are easier than ever,Equipped with Roller Bearing Clutch™,Large upper pulley offset automatically adjusts chain gap,Long cage fits up to a 42 tooth cog.CAGE LOCK™With CAGE LOCK™ technology in the rear derailleur, wheel removal and installation—as well as chain installation—becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place.SpecificationsWeight: 314gColors: BlackOuter Cage: SteelCompatibility: 10-speed and 11-speed SRAM 1x™ road systemsInner Cage: SteelCage Sizes: LongMax Tooth: 42tPulleys: Sealed cartridge bearingsPull: EXACT ACTUATION™

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SRAM X1 Type 2.1 11 Speed Rear Derailleur Rear Derailleurs
  • £62.99
  • RRP £182.00
  • Saving you £65

By eliminating unwanted chain movement, X-Horizon shifts faster, puts an end to ghost shifting and reduces shift force and chain slap. And with Cage Lock technology, wheel removal and installation are easier than ever. Cage Lock With Cage Lock technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place. Roller Bearing Clutch Features Roller Bearing Clutch (RBC) rear derailleurs deliver maximum drivetrain stability—even through the most punishing terrain. With RBC technology, derailleur bounce and chain slap are eliminated without sacrificing precision. X-Actuation Developed specifically for SRAM 1X, X-Actuation keeps shifting sharp and consistent across the entire 10 to 42-tooth cassette. X-Horizon The X-Horizon rear derailleur’s ‘straight parallelogram’ design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force. For quicker, more exact shifting, the large upper pulley offset design maintains a constant chain gap across all gears. X-Sync SRAM X-Sync 1X chain rings provide the highest level of performance and durability. The SRAM X-Sync tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-Sync chain rings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-Sync rings are an integral part of the SRAM 1X drivetrain.

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SRAM GX 2x10 Speed Rear Derailleur (Type 2.1) Rear Derailleurs
  • £63.00
  • RRP £71.00
  • Saving you £11

The X-Actuation technology eliminates slop whilst the Roller Bearing Clutch technology delivers maximum stability making the SRAM GX 10 speed rear derailleur great over punishing terrain. This technology also removes shifting variation and offers you incredible shifting speed and precision. Cage Length Information: Short Cage option has a total chain wrap capacity of 30T (Ideal for use with downhill (DH) / enduro bikes with a smaller chainring up front) Medium Cage option has a total chain wrap capacity of 35T (Ideal for use with all mountain (AM) / trail bikes with a medium chainring up front) Long Cage option has a total chain wrap capacity of 47T (ideal for use with touring bikes with a larger chainring up front)

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SRAM GX Type 2.1 10sp Rear Derailleur - Black - Short Cage}, Black
  • £63.00
  • RRP £71.00
  • Saving you £11

SRAM GX Type 2.1 10 Speed Rear DerailleurThis SRAM GX 10-speed rear mechanism is developed to work with the SRAM 10 speed MTB shifters and a 2x chainring setup. Using a 1:1 cable pull ratio and a rolling bearing clutch this tough component will ensure you have a crisp and precise gear change.Leveraging the legendary history of SRAM shifting, the GX 2x10 rear derailleur provides incredible shifting speed and precision. EXACT ACTUATION technology eliminates chain slackness and shifting variation. ROLLER BEARING CLUTCH technology delivers maximum drivetrain stability-even through the most punishing terrain. And with CAGE LOCK technology, wheel removal and installation are easier than ever.Features: Material: Aluminium Speed: 10-Speed Mount Type: Standard hanger mount Compatibility: Exact Actuation Recommended Group: GX 2x10 Maximum Cassette Low Sprocket Capacity: 36T Shifter Capability: SRAM 10 speed flat bar shifters ONLY Cable Pull Ratio: 1:1 SRAM Part No. RD-GX-T21-A1 Weight: 302gCage Length Information:Short Cage Option: Total chain wrap capacity of 30T (Ideal for use with downhill (DH) / enduro bikes with a smaller chainring up front)Medium Cage Option: Total chain wrap capacity of 35T (Ideal for use with all mountain (AM) / trail bikes with a medium chainring up front)Long Cage Option: Total chain wrap capacity of 47T (ideal for use with touring bikes with a larger chainring up front)Technologies: Exact Actuation - SRAM launched their road technology from scratch, they reapplied their MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement) for 10 speed rear shifting. EA helps to simplify/stabilise the uneasy act of balancing rear derailleur hanger design, tight cog spacing and exact cable tension. The result: the easiest index shifting system to set up and it stays that way. Cage Lock: With this technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place. Roller Bearing Clutch: Rear derailleurs with the technology deliver maximum drivetrain stability, even through the most punishing terrain. With Roller Bearing Clutch technology, derailleur bounce and chain slap are eliminated without sacrificing precisionBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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SRAM GX Type 2.1 10sp Rear Derailleur - Black - Long Cage}, Black
  • £63.00
  • RRP £71.00
  • Saving you £11

SRAM GX Type 2.1 10 Speed Rear DerailleurThis SRAM GX 10-speed rear mechanism is developed to work with the SRAM 10 speed MTB shifters and a 2x chainring setup. Using a 1:1 cable pull ratio and a rolling bearing clutch this tough component will ensure you have a crisp and precise gear change.Leveraging the legendary history of SRAM shifting, the GX 2x10 rear derailleur provides incredible shifting speed and precision. EXACT ACTUATION technology eliminates chain slackness and shifting variation. ROLLER BEARING CLUTCH technology delivers maximum drivetrain stability-even through the most punishing terrain. And with CAGE LOCK technology, wheel removal and installation are easier than ever.Features: Material: Aluminium Speed: 10-Speed Mount Type: Standard hanger mount Compatibility: Exact Actuation Recommended Group: GX 2x10 Maximum Cassette Low Sprocket Capacity: 36T Shifter Capability: SRAM 10 speed flat bar shifters ONLY Cable Pull Ratio: 1:1 SRAM Part No. RD-GX-T21-A1 Weight: 302gCage Length Information:Short Cage Option: Total chain wrap capacity of 30T (Ideal for use with downhill (DH) / enduro bikes with a smaller chainring up front)Medium Cage Option: Total chain wrap capacity of 35T (Ideal for use with all mountain (AM) / trail bikes with a medium chainring up front)Long Cage Option: Total chain wrap capacity of 47T (ideal for use with touring bikes with a larger chainring up front)Technologies: Exact Actuation - SRAM launched their road technology from scratch, they reapplied their MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement) for 10 speed rear shifting. EA helps to simplify/stabilise the uneasy act of balancing rear derailleur hanger design, tight cog spacing and exact cable tension. The result: the easiest index shifting system to set up and it stays that way. Cage Lock: With this technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place. Roller Bearing Clutch: Rear derailleurs with the technology deliver maximum drivetrain stability, even through the most punishing terrain. With Roller Bearing Clutch technology, derailleur bounce and chain slap are eliminated without sacrificing precisionBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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SRAM GX Type 2.1 10sp Rear Derailleur - Black - Medium Cage}, Black
  • £63.00
  • RRP £71.00
  • Saving you £11

SRAM GX Type 2.1 10 Speed Rear DerailleurThis SRAM GX 10-speed rear mechanism is developed to work with the SRAM 10 speed MTB shifters and a 2x chainring setup. Using a 1:1 cable pull ratio and a rolling bearing clutch this tough component will ensure you have a crisp and precise gear change.Leveraging the legendary history of SRAM shifting, the GX 2x10 rear derailleur provides incredible shifting speed and precision. EXACT ACTUATION technology eliminates chain slackness and shifting variation. ROLLER BEARING CLUTCH technology delivers maximum drivetrain stability-even through the most punishing terrain. And with CAGE LOCK technology, wheel removal and installation are easier than ever.Features: Material: Aluminium Speed: 10-Speed Mount Type: Standard hanger mount Compatibility: Exact Actuation Recommended Group: GX 2x10 Maximum Cassette Low Sprocket Capacity: 36T Shifter Capability: SRAM 10 speed flat bar shifters ONLY Cable Pull Ratio: 1:1 SRAM Part No. RD-GX-T21-A1 Weight: 302gCage Length Information:Short Cage Option: Total chain wrap capacity of 30T (Ideal for use with downhill (DH) / enduro bikes with a smaller chainring up front)Medium Cage Option: Total chain wrap capacity of 35T (Ideal for use with all mountain (AM) / trail bikes with a medium chainring up front)Long Cage Option: Total chain wrap capacity of 47T (ideal for use with touring bikes with a larger chainring up front)Technologies: Exact Actuation - SRAM launched their road technology from scratch, they reapplied their MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement) for 10 speed rear shifting. EA helps to simplify/stabilise the uneasy act of balancing rear derailleur hanger design, tight cog spacing and exact cable tension. The result: the easiest index shifting system to set up and it stays that way. Cage Lock: With this technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place. Roller Bearing Clutch: Rear derailleurs with the technology deliver maximum drivetrain stability, even through the most punishing terrain. With Roller Bearing Clutch technology, derailleur bounce and chain slap are eliminated without sacrificing precisionBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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SRAM GX Type 2.1 10-Speed Rear Derailleur
  • £63.00
  • RRP £75.00
  • Saving you £16

Leveraging the legendary history of SRAM shifting, the GX 2x10 rear derailleur gives incredible shifting speed and precision. Exact Actuation technology eliminates slop and shifting variation. Roller Bearing Clutch technology delivers maximum drivetrain stability even through the most punishing terrain. And with Cage Lock technology, wheel removal and installation are easier than ever. Also available without Roller Bearing Clutch.

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SRAM Apex 1 Rear Derailleur - Long Cage
  • £63.20
  • RRP £79.00
  • Saving you £20

The Apex 1 Rear Derailleur is part of SRAM s Apex 1 drivetrain, providing the gear range and efficient shifting you need to go wherever you want. X-Horizon Design with Cage Lock TechnologyCompatible with 11-speed SRAM 1x Road SystemsEquipped with a Roller Bearing ClutchLarge Upper Pulley Offset Automatically Adjusts Chain GapLong Cage Fits up to a 42-Tooth CogThe Apex 1 Rear Derailleur offers the X-Horizon design which shifts faster, eliminates ghost shifting and reduces shift force and chain slap. The welcomed addition of Cage Lock Technology makes wheel removal and instillation easier than ever, and the large upper pulley offset automatically adjusts chain gap. The Apex 1 offers high level performance and exceptional value for money, making it the perfect gateway to 1x setups for those on a budget. 

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