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Box One Prime 9 Speed Rear Derailleur Rear Derailleurs
  • £174.99

This Box One rear mech takes the advantages of legacy 9 speed drive-trains but also adds the advancements of modern 1 by drive-trains. It features a fully adjustable Tri-Pack Clutch, Forged Construction as well as optimisation for an 11-50t cassette. This allows it to step up to the durability and performance of an unparalleled level that's suited for the most demanding terrain. Compatibility: • Box One Prime 9 11-50T Cassette Black • Box Two Prime 9 11-50T Cassette Black • Box Three Prime 9 11-50T Cassette Black • Box One Prime 9 Chain 126L DLC Black • Box Two Prime 9 126 Link Chain Nickel • Box Three Prime 9 126 Link Chain Polished • Box One Prime 9 Shifter Black • Box Two Prime 9 Shifter Black • Box Three Prime 9 Shifter Black FAQ: Are Box Prime 9 derailleurs compatible with Shimano "direct mount" hangers? No, Shimano direct mount hangers are proprietary and are not compatible with Box derailleurs. Is the Box One Prime 9 Derailleur compatible with other 9 speed components? No, traditional 9 speed systems use a Cable Pull that is not compatible with Prime 9. Are Box Prime 9 derailleurs compatible with drop bar (road) shifters? No, Box Prime 9 derailleurs are not currently compatible with drop bar shifters, but we do offer a clamp for our shifters to mount on some 31.8mm drop handle bars. How should I clean my Box One Prime 9 derailleur? We suggest removing the derailleur from the bike and using a soft bristle brush or rag with soapy water or a mild de-greaser. We do not recommend pressure washing, strong solvents or de-greasers as they could degrade the surface coating.

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Box Two Prime 9 Speed Rear Derailleur Rear Derailleurs
  • £107.99
  • RRP £110.00
  • Saving you £2

This 9 speed Box Two rear mech is very similar to the Box One version however, to be more wallet-friendly, it offers a non-adjustable Tri-Pack Clutch, bushing pulleys, and some muted finishes. Box Two rear derailleurs are still optimised for 11-50T cassettes and offer durability and performance for the most demanding terrain, just at a lower price! Compatibility: • Box One Prime 9 11-50T Cassette Black • Box Two Prime 9 11-50T Cassette Black • Box Three Prime 9 11-50T Cassette Black • Box One Prime 9 Chain 126L DLC Black • Box Two Prime 9 126 Link Chain Nickel • Box Three Prime 9 126 Link Chain Polished • Box One Prime 9 Shifter Black • Box Two Prime 9 Shifter Black • Box Three Prime 9 Shifter Black FAQ: Are Box Prime 9 derailleurs compatible with Shimano "direct mount" hangers? No, Shimano direct mount hangers are proprietary and are not compatible with Box derailleurs. Is the Box Two Prime 9 Derailleur compatible with other 9 speed components? No, traditional 9 speed systems use a Cable Pull that is not compatible with Prime 9. Are Box Prime 9 derailleurs compatible with drop bar (road) shifters?  No, Box Prime 9 derailleurs are not currently compatible with drop bar shifters, but we do offer a clamp for our shifters to mount on some 31.8mm drop handle bars. How should I clean my Box Two Prime 9 derailleur? We suggest removing the derailleur from the bike and using a soft bristle brush or rag with soapy water or a mild de-greaser. We do not recommend pressure washing, strong solvents or de-greasers as they could degrade the surface coating.

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CeramicSpeed OSPW Campagnolo Coated Rear Derailleur Spares
  • £401.19
  • RRP £471.99
  • Saving you £15

This version of the Over Sized Pulley Wheel system features coated bearings, which means the bearings have been treated with a special, thin layer coating system. This coating ensures prolonged bearing life, lower friction and means the bearing race is exceptionally resistant to corrosion. This Pulley Wheel System is designed to enhance drivetrain performance and increase the efficiency of power transfer from rider to the road. Created using the highest quality materials and ensures that performance from the already exceptional Campagnolo rear derailleurs is increased even further, pushing you even further ahead of the competition. This model is not compatible with Campagnolo 12-Speed drivetrains at this time. Please note: Many Campagnolo rear derailleur designs (including all EPS models) do not feature a B-limit adjustment screw. It may not be possible to use a 32 tooth cassette with this system due to how some bike dropouts are designed. Compatible with:  Record mechanical Record EPS Super Record mechanical Super Record EPS Potenza mechanical Chorus

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CeramicSpeed OSPW System Campagnolo 12s EPS Gold Rear Derailleur Spares
  • £294.99
  • RRP £439.95
  • Saving you £33

This special limited edition OSPW System features a moulded carbon fibre cage for the best balance of low weight and durability. It is developed specifically for the Campagnolo 12 speed EPS system and offers a three-spring tension setting that allows for optimal setup based on riding conditions.  Limited Edition Campagnolo OSPW System Like every other CeramicSpeed Oversized Pulley Wheel System, this is developed, designed and handbuilt in Denmark. It is available with either CeramicSpeed Standard or Coated pulleys (choose option from the menu) with a lifetime CeramicSpeed warranty on the coated version and four years CeramicSpeed warranty on the standard version.  The system is not compatible with 12 speed mechanical.  Manufacturer's Part Numbers: 110206 Gold Option 1 Non Coated  110207 Gold Option 2 Coated

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CeramicSpeed OSPW System R9250-R8150 Rear Derailleur Spares
  • £349.99
  • RRP £439.95
  • Saving you £20

Chosen by World Champions and top athletes around the world, the CeramicSpeed Oversized Pulley Wheels System has been proven to be the fastest pulley system in the world. Featuring an industry-leading design, this limited edition model is for Shimano Dura-Ace 9200 and Ultegra 8100 systems with an integrated stop tower for simple installation and durability. This OSPW System has hand-built CeramicSpeed Bearings installed in each pulley and it comes with a four-year CeramicSpeed warranty as standard and a lifetime CeramicSpeed warranty when choosing coated bearings (please choose option from the menu). Since its introduction in 2015, the CeramicSpeed Oversized Pulley Wheel System has been through 13 unique derailleur compatibility developments. No other pulley system has the depth of use and trust as the CeramicSpeed OSPW, which counts both Men’s and Women’s Triathlon World Champions, World Tour professional road teams, XCO professional MTB Teams, and elite athletes worldwide as its users. CeramicSpeed Shimano R9250/R8150 OSPW System Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimisation of the rear derailleur. The upper and lower oversized aluminium pulley wheels come fitted with either standard or coated CeramicSpeed Bearings. Please Note: While there are visual similarities in the 9100 Series OSPW and 9200 Series OSPW, the spring tension settings, rotation stop tower placement, and mounting pin depth are slightly repositioned and as such the systems are not cross-compatible. For 8100 derailleurs, the cage uses the factory derailleur body washer. 9200 derailleurs will require the new included derailleur body washer. Technologies: - The overall power savings of the OSPW System for Shimano Dura-Ace 9200 and Ultegra 8100 reach 30%-60%, or more in some cases, over a stock setup. - The oversized pulley wheels have 3-5 times longer lifetimes than the commonly used standard pulleys on the market.  

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CeramicSpeed OSPW System SRAM Red/Force AXS Gold Rear Derailleur Spares
  • £379.99
  • RRP £439.95
  • Saving you £14

This hand built limited edition OSPW System features a moulded carbon fibre cage for the best balance of low weight and durability. It is developed specifically for SRAM Red AXS and SRAM Force AXS systems and has two spring tension settings, that allow for a customised setup based on riding conditions. Limited Edition SRAM Red/Force AXS OSPW System The Oversized Pulley Wheel System for SRAM Red and Force AXS features a 15-tooth upper and 19-tooth lower pulley wheel setting, for maximum efficiency. This OSPW System is also compatible with the 2020 11 speed SRAM Red eTap derailleur featuring a clutch.  Please Note: While there are visual similarities with the SRAM RED/Force AXS derailleurs, this OSPW system is not compatible with the SRAM Rival AXS, or SRAM RED, Force, or Rival XPLR eTap AXS rear derailleurs. Please see our pulley wheels for SRAM AXS Road. In the Box: - Complete OSPW System for SRAM Red/Force AXS. - CeramicSpeed Pulley Oil, 15ml dropper bottle. - Custom tool for removal of stock cage and securing of OSPW System.  Special notes: Custom tool included for removal of the stock cage and securing of OSPW. The factory clutch mechanism will remain intact and in stock form. There is no damage or modification to the clutch for the installation of the OSPW System.  Manufacturer's Part Numbers: 110201 Gold Option 1 Coated 110200 Gold Option 2 Non Coated

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CeramicSpeed OSPW System GRX/Ultegra RX 2x Rear Derailleur Spares
  • £309.99
  • RRP £439.95
  • Saving you £30

This hand-built OSPW System features a moulded carbon fibre cage for the best balance of low weight and durability. It is developed specifically for Shimano GRX/Ultegra RX 2x systems and has four spring tension settings that allow for a customised setup based on ride conditions. Since its introduction in 2015, the CeramicSpeed Oversized Pulley Wheel System has been through 13 unique derailleur compatibility developments. No other pulley system has the depth of use and trust as the CeramicSpeed OSPW, which counts both Men’s and Women’s Triathlon World Champions, World Tour professional road teams, XCO professional MTB Teams, and elite athletes worldwide as its users. Shimano GRX/Ultegra OSPW System This 13-tooth upper and 19-tooth lower OSPW System has been platform proven at races like Paris Robaix, Strada Bianche and CX World Cups. The system is built for gravel and cross disciplines and meets the needs for durability, low friction and longevity. CeramicSpeed OSPW Systems reduce friction by 35-40% over stock pulley configurations.  Only compatible with 2X systems. Not compatible with 42-tooth cassettes. In the Box: - Complete OSPW System for Shimano GRX/RX 2x11. - CeramicSpeed Pulley Oil. - Sticker Sheet.

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microSHIFT R10 R712 Double Front Derailleur Front Derailleurs
  • £7.99
  • RRP £24.99
  • Saving you £68

Ideal for use with microSHIFT 10-Speed and Shimano 105 5700 and Tiagra 4600 gear transmissions, this front derailleur ensures precise, fast and virtually silent gear changes while providing durable and reliable performance throughout use. Key Features: R10 Front Derailleur for 2 x 10 Speed Cold Forged Aluminium Brackets Cold Forged Aluminium Inner & Outer Link Capacity: 16T Top Gear Teeth: 50-56T Chain Line: 43.5mm Rear sprocket Max.: ≤ 34T Shimano 105 5700; Tiagra 4600 compatible Features: Series: R10 Model No.: FD-R712-B Chainring: Double Cassette Compatibility: 10 Speed, max. ≤ 34T Top Gear Teeth: 50~56T Capacity: 16T Route Type: Down Pull Chainstay Angle: 61-66° Mount Type: Clamp Chain Line: 43.5mm Band Diameter: Φ34.9 mm or Φ31.8mm adapter Front Clamp Band: Anodized Cold Forged Aluminium Rear Clamp Band: Anodized Cold Forged Aluminium Outer Link: Anodized Cold Forged Aluminium Inner Link: Anodized Cold Forged Aluminium Chain Guide: Chrome Plated Steel Average Weight: 193g Compatibility: Shimano 105 5700; Tiagra 4600 compatible

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microSHIFT Acolyte RD-M5185-M 8 Speed Rear Derailleur Rear Derailleurs
  • £26.99
  • RRP £29.99
  • Saving you £10

Ideal for trail, all-mountain and cross-country riding, this derailleur features SpringLock chain retention to hold your chain in place and is compatible with microSHIFT Acolyte shifters only. Precise and Reliable Wide Range 8-Speed Gear Shifting The heart of the Acolyte derailleur is our innovative SpringLock system. By pairing a customized linear rate high tension spring and a dual-stage activation mechanism, we’ve developed a system that can provide substantial chain security when you need it and can be turned off when you don’t. To engage the clutch, turn the engagement bolt clockwise until it clicks. There’s no way to overtighten the bolt. To disengage the clutch for wheel removal, flip the switch. It’s that simple. Key Features: Innovative SpringLock chain retention keeps the chain in place over rough terrain Direct path cable routing for smooth and responsive shifting Compatible with 12-42T and 12-46T 8-speed cassettes Compatible with Acolyte shifters only

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microSHIFT R539 Triple 9 Speed Front Road Derailleur Front Derailleurs
  • £9.99
  • RRP £19.99
  • Saving you £50

 This 9-Speed front derailleur is ideal for use with a 3x9-Speed road drivetrain. Plus, it's compatible with a 52-tooth large chainring, has a 22-tooth total capacity and features a traditional clamp mount type. Key Features: Front Derailleur for 9 Speed For a triple chainset Full aluminium construction Features: Model No.: FD-R539-B Chainring: Triple Cassette Compatibility: 9 Speed Top Gear Teeth: 52T-42T-30T Capacity: 22T Route Type: Down Pull Chainstay Angle: 72-75 Mount Type: B: Clamp Type Chain Line: 45.0mm Band Diameter: Φ31.8mm or Φ28.6mm adapter Front Clamp Band: Anodized Cold Forged Aluminium Rear Clamp Band: Anodized Cold Forged Aluminium Outer Link: Anodized Cold Forged Aluminium Inner Link: Anodized Cold Forged Aluminium Chain Guide: Small size / Chrome Plated Steel Weight: 124g

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CeramicSpeed OSPW System Shimano 9000-6800 Rear Derailleur Spares
  • £341.49
  • RRP £379.99
  • Saving you £10

CeramicSpeed OSPW System Coated Shimano 10/11s 9000/6800 finished in Silver, will add a competitive edge to your riding with smoother gear changes, watts saved and envy to all who see your bike.  Developed and designed entirely by CeramicSpeed, the Oversized Pulley Wheel (OSPW) System for Shimano 9000/6700 provides the ultimate optimization of your bicycle's drivetrain. This OSPW System features a set of 17-tooth aluminium Pulley Wheels, available in red and black, housed in a specially designed polyamide (PA) and carbon cage. The upper and lower 17-tooth oversized aluminium pulley wheels come fitted with either standard or coated CeramicSpeed Bearings. The Oversized Pulley Wheel (OSPW) System is the product of choice by many of the world's leading cycling teams and triathletes. This specific system is compatible with Ultegra 6700/6770/6800/6870 mechanical and Di2 rear derailleurs and Dura-Ace 7900/7970/9000/9070 mechanical and Di2 rear derailleurs. The cage is made from carbon fibre and reinforced PA while the 17-tooth pulley wheels are made from aluminium and mounted with high-quality CeramicSpeed coated bearings. The revolutionary OSPW System is mounted with CeramicSpeed coated bearings, which means it has undergone a special coating treatment to provide even more protection and lower friction. A very thin protective coating is applied to the bearing races, which further increases the resistance to corrosion or damage from foreign objects. The OSPW has been tested and confirmed to be the world’s fastest pulley wheel system, therefore enhancing your performance with free speed, which gives you a more efficient drivetrain. Since its introduction in 2015, the CeramicSpeed Oversized Pulley Wheel System has been through 13 unique derailleur compatibility developments. No other pulley system has the depth of use and trust as the CeramicSpeed OSPW, which counts both Men’s and Women’s Triathlon World Champions, World Tour professional road teams, XCO professional MTB Teams, and elite athletes worldwide as its users. Maintenance It’s important that you properly lubricate your bearings in order to ensure optimal performance and maximum longevity. Add oil to the outside of the bearing seal, so that oil can penetrate the bearing. Do this when you lubricate your chain, or if you have washed your bike or have been riding in wet or muddy conditions. This revolutionary OSPW System is developed, produced and assembled by hand in Denmark. This plug-and-play product is the result of an in-depth development process and has been designed for optimal performance. Created to answer the need for less friction (as much as 60%), increased speed and a more efficient drivetrain. This OSPW System helps you ride any distance comfortably. The optimisation of your drivetrain with the new CeramicSpeed OSPW System delivers access to industry-leading efficiency. The use of high-quality materials means this system will outlast other commonly used pulley wheels on the market.

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CeramicSpeed OSPW System Shimano R9200-R8100 Rear Derailleur Spares
  • £369.99
  • RRP £439.95
  • Saving you £16

The Oversized Pulley Wheel System for Shimano Dura-Ace 9200 and Ultegra 8100 with integrated stop tower for simple installation and durability.   This OSPW System has handbuilt CeramicSpeed Bearings installed in each pulley and comes with a 4-year warranty as standard and a lifetime warranty when choosing coated bearings. Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimisation of the rear derailleur. The upper and lower oversized aluminium pulley wheels come fitted with either standard or coated CeramicSpeed Bearings. For 8100 derailleurs, the cage uses the factory derailleur body washer. 9200 derailleurs will require the new included derailleur body washer. The CeramicSpeed Oversized Pulley Wheels System has been proven to be the fastest pulley system in the world. With an industry-leading design, the CeramicSpeed OSPW System is the choice of World Champions and top athletes around the world.  Since its introduction in 2015, the CeramicSpeed Oversized Pulley Wheel System has been through 13 unique derailleur compatibility developments. No other pulley system has the depth of use and trust as the CeramicSpeed OSPW, which counts both Men’s and Women’s Triathlon World Champions, World Tour professional road teams, XCO professional MTB Teams, and elite athletes worldwide as its users. This OSPW System has handbuilt CeramicSpeed Bearings installed in each pulley and it comes with a four-year manufacturer's warranty as standard. Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimisation of the rear derailleur. The upper and lower oversized aluminium pulley wheels come fitted with standard CeramicSpeed Bearings. Also included in the box is a 15ml dropper bottle of CeramicSpeed Bearing Oil. Technical Data The overall power savings of the OSPW System for Shimano 9200 reach 30%-60%, or more in some cases, over a stock setup. The oversized pulley wheels have 3-5 times longer lifetime than the commonly used standard pulleys on the market. Maintenance of CeramicSpeed OSPW Systems Regarding the maintenance of your OSPW System, it is important that you properly lubricate your bearings in order to ensure optimal performance and maximum longevity. Add oil by using the lubrication points on the back cage plate, so that oil can penetrate the bearing. Do this when you lubricate your chain, if you have washed your bike or after riding in wet or muddy conditions. Please note: While there are visual similarities in the 9100 Series OSPW and 9200 Series OSPW, the spring tension settings, rotation stop tower placement, and mounting pin depth are slightly repositioned and as such the systems are not cross-compatible. Technologies: - Integrated stop tower for simple installation and durability. - Lifetime warranty on system cage. - Trusted design by World Champions and top athletes around the world. - 13/19 pulley wheel sizes. - Standard or CeramicSpeed bearings (multiple options in the selection menu). - Handbuilt CeramicSpeed bearings are installed in each pulley.

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