Shimano GRX 812 1 x 11 Speed Rear DerailleurThe RX812 is specially engineered to conquer all the challenges of gravel riding, as it gives you smooth shifting performance. Whether you're riding after work with your friends or taking on an exciting new adventure, this 11-speed model has you covered. Dominate on every ride thanks to its incredibly versatile chain stabiliser which prevents chain slapping and drops as you shift. Shimano has also installed a switch stabiliser to this model, allowing you the freedom to turn it on/off based on the terrain conditions.Silent Shifting Rear MechWhen riding over mixed terrain surfaces with gravel and mud, this derailleur remains silent and uninterrupted thanks to some of the finest industry-leading technologies. This Shimano Index System gives you frictionless shifting and smooth action to get you through the harshest roads efficiently. If you're interested in exploring further than ever before, this is an ideal choice of upgrade for a reliable and instant shifting experience.Features: Part No: RD-RX812Use: Gravel, Road Link Bushings: 4 fluoric coated link bushings Speed: 11 speed Compatible Chain: HG-EV 11 speed, HG-X11 Spring: Shimano Shadow RD+ Low Sprocket Max: 42T Low Sprocket Min: 40T Top Sprocket Max: 11T Top Sprocket Min: 11T Pulley Teeth: 11T Total Capacity: 31TWeight: 267gTechnologies: Shadow RD+: Less distraction quiet drive train. Rear derailleur stabilizer reduces chain slap. A simple solution for chain drop. Lighter and more efficient than the roller type chain device. Shimano Index Shifting System: The system constituents such as the index mechanism built in the shifting lever, the frictionless SIS rear index shifting cable and the smooth action rear derailleur realise the Shimano Index System.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.
Shimano GRX 810 2 x 11 Speed Rear DerailleurShimano has engineered its GRX 810 gravel bike rear derailleur to bring you quiet and slick shifting performance as you take on the roughest terrain. It has also included its clutch adjustment switch, which adjusts the chain tension to prevent your bike’s chain dropping or slapping on the frame. This not only protects your frame; it ensures reliable gear changes over mixed terrains.Features:Use: Gravel, RoadSpeed: 2x11 speedCompatible Chain: HG-EV 11 speed; HG-X11Link Bushings: 4 fluoric coated link bushingsLow Sprocket Max: 34TLow Sprocket Min: 30TMax Front Difference: 17TPulley Teeth: 13TTop Sprocket Max: 11TTop Sprocket Min: 11TTotal Capacity: 40T Mounting: Standard Hanger Mount or Direct Mount Clutch Type: YesSpring Type: Shimano Shadow RD+ Manufacturer's Part Number: RDRX810 Weight: 255g (approx.)Technologies: Shimano Index System: Every Shimano equipped multi-gear bicycle includes Shimano S.I.S - Shimano Indexed Shifting. It's the technology behind that "click" you hear and feel every time you shift through your gears. That "click" captures the light, precise, and consistent shifting bikes equipped with Shimano deliver. It's the sound of perfect gear changes, of levers directing derailleurs in harmony and the feeling that resonates into your hand, letting you know that your commands are being answeredShimano Shadow RD+: Less distraction quiet drive train. Rear derailleur stabiliser reduces chain slap. A simple solution for chain drop. Lighter and more efficient than roller type chain device 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.
Shimano XT M8120 2x12sp Rear DerailleurThis high-quality rear mech is ready to tackle any trail as it delivers quick and precise shifting performance. Enjoy faster and slicker gear changes thanks to this stunning model's low-profile design which stabilises chain tension in low gears. Furthermore, its pulley cage bumper aids towards a silent running drivetrain while keeping it firm on rough terrain.Features: Use: MTB Speed: 12 speed Size: Long Cage Bushings: 4 fluoric coated link bushings Compatible Chain: HG 12 speed Low Sprocket Max: 45T Low Sprocket Min: 45T Max Front Difference: 10T Bearings: Sealed pulley bearings Pulley Teeth: 13T Spring: Shimano Shadow RD+ Top Sprocket Max: 10T Top Sprocket Min: 10T Total Capacity: 45T Technologies:Hyperglide+: Hyperglide+ drivetrain's redesigned cassette and chain promotes the next generation of MTB riding by enhancing speed, shifting efficiency and smoothness over any terrain. It will help kickstart the next generation of mountain bike riding by introducing continuous pedalling over virtually any terrain. This revamped drive system and dedicated chain deliver fast shifting, efficient power transfer and chain stability like you've never experienced before. It helps riders adapt to drastically changing trail conditions by precisely judging the optimal shifting moment for consistently smooth operation. Shimano Shadow RD+: Less distraction quiet drive train. Rear derailleur stabiliser reduces chain slap. Simple solution for chain drop. Lighter and more efficient than roller type chain device. 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.
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.
Shimano M5120 Deore 10/11Sp Sha+ Rear DerailleurThis rear mech is specifically designed for fast and fun MTB rides, as it gives you dependable 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 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 Single or Pair: SinglePart Numbers: RDM5120SGSTechnologies: 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.
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.
Shimano M3100 Alivio 9 speed Rear DerailleurThis rear mech is engineered for MTB riding, as it offers crisp performance on every ride. It features Shimano's Shadow design with a smooth skid plate surface and a super low profile alloy design that reduces the risk of damage from trail side hazards. This makes it more than capable of handling all the abuse that's associated with all-day epics in the mountains. Coming complete with a wide link design, it increases rigidity and service life.Features: Body Material: Alloy Use: MTB Speed: 9 speed Size: Long Cage Type: Rear Links: Wide links Pulleys: 11T pulleys Low Sprocket Compatibility: 32 to 36TMax Capacity: 45TSwing: Normal top-swing design Profile: Low profile Compatibility: Compatible with 9 speed Hyperglide sprockets Single or Pair: SinglePart Number: RDM3100SGSTechnologies: Shadow: Shadow design with smooth skid plate surface features a super low profile design that reduces the risk of damage from trail side hazards. Wide Link: Wide link design for greater torsional rigidity improves shifting response and service life.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.
Shimano M4120 Deore 10/11 Shad Rear DerailleurThis rear mech is specifically designed mountain bike riding, as it gives you reliable shifting performance and excellent durability. It Features Shadow technology, which uses a super-low profile design and an optimised slant angle for amazingly light shifting action on the toughest of rides. Shimano has also kitted out this model with a single tension spring, which prevents contact with the chainstay and delivers a silent ride.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: 42T (2x11/2x10 speed) Clutch Option: 41T capacity SGS Long Cage Compatibility: HG-X11 11-speed and HG-X 10-speed compatible Single or Pair: Single Part Numbers: RDM4120SGSTechnologies: Shadow: Shadow design features a super low profile design and optimized slant angle for super light shifting action. 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.
Shimano Dura-Ace R9250 Di2 12 Sp Rear DerailleurThe Dura-Ace R9250 Di2 12-Speed is Shimano's fastest shifting and most efficient rear derailleur for road racing. It's optimised for exceptional gear shifting performance with Shimano Di2 electronic drivetrain systems and shifts through gears effortlessly, smoothly and consistently in all conditions.The fastest shifting rear derailleur across Shimano's widest ever Dura-Ace gear range, the RD-R9250 is capable of both race wins and personal bests. The Dura-Ace RD-R9250 integrates the system charging port and a wireless connectivity unit all while delivering super-fast, precise shifting worthy of any podium. Engineered with a single cage length, this derailleur shifts across cassettes with gear ratios from 11-28 to 11-34 - bringing new versatility to the world's best road component groupset.Shimano Di2 Electronic Drivetrain PerformanceThanks to its lightning-fast, accurate, and reliable shifting performance, Di2 puts riders in complete control and ensures a seamless interface between the cyclist and bike like never before. Creating and continually improving the world's best shifting is a complicated undertaking requiring constant technological advancements. From hardware to software, Shimano Di2 technology is on the cutting edge, striving to deliver the best rider experience possible now and in the future. Shimano E-Tube CompatibleE-Tube is Shimano's “service” that uses websites or apps to maximize the enjoyment of riding a bicycle by connecting the riders, the bicycles and Shimano. Shimano's genuine application E-Tube Project for Mobile allows you to customize your bike, update firmware, and maintain it by connecting it wirelessly to your bike. You can also get more detailed bike maintenance by connecting to your bike by wire with E-Tube Project via the Windows V4 application. Direct Mount CompatibleRear wheels are easier to remove with a mounting option for Shimano Shadow rear derailleur (RD) and Shimano Shadow RD+. The direct mount feature is designed to suit a wide range of contemporary frames with large-section chainstays, in particular, mountain bikes with thru-axle dropouts. Shimano Shadow Low-Profile Rear DerailleurThe mechanism rear derailleur, Shimano Shadow RD, is intended for more aggressive riding. Its super low profile design carries many benefits. Because of its low profile and single tension construction, the derailleur does not hit the chain stay in rough riding conditions. The result is smooth and silent performance. Features: Fastest ever rear shifting, 58% faster than RD-R9150 Series: DURA-ACE R9200 Series, 12-Speed Compact design includes an integrated wireless unit, charger, and switch LED status indicator (Battery indicator, Pairing, Adjust mode, etc.) Wider range capacity (Max. low sprocket: 34T) CFRP rear derailleur plate Speeds: 12-Speed Weight: 215gA 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.
Shimano Ultegra R8150 Di2 12 Sp Rear DerailleurEngineered to offer rapid and precise gear shifting, the Ultegra R8150 Di2 12 Speed Rear Derailleur from Shimano is the most efficient and reliable 12-Speed derailleur available. It's compatible with Shimano Di2 electronic drivetrain systems, which enables you to click through the 12-Speed gear range with minimal effort and the utmost accuracy.Now simplified with a single derailleur cage length, the new 12-Speed Shimano Ultegra R8150 rear derailleur packs the fastest, most precise shifting on the market into a more affordable option. With the fastest, most accurate shifting on the market, the new 12-Speed Ultegra R8150 rear derailleur is more versatile than ever thanks to a single cage length option compatible with 11-28, 11-30, and 11-34 cassettes. Shimano Di2 Electronic Drivetrain PerformanceThanks to its lightning-fast, accurate, and reliable shifting performance, Di2 puts riders in complete control and ensures a seamless interface between the cyclist and bike like never before. Creating and continually improving the world's best shifting is a complicated undertaking requiring constant technological advancements. From hardware to software, Shimano Di2 technology is on the cutting edge, striving to deliver the best rider experience possible now and in the future. Shimano E-Tube CompatibleE-Tube is Shimano's “service” that uses websites or apps to maximize the enjoyment of riding a bicycle by connecting the riders, the bicycles and Shimano. Shimano's genuine application E-Tube Project for Mobile allows you to customize your bike, update firmware, and maintain it by connecting it wirelessly to your bike. You can also get more detailed bike maintenance by connecting to your bike by wire with E-Tube Project via the Windows V4 application. Direct Mount CompatibleRear wheels are easier to remove with a mounting option for Shimano Shadow RD and Shimano Shadow RD+. The direct mount feature is designed to suit a wide range of contemporary frames with large-section chainstays, in particular, mountain bikes with thru-axle dropouts. Shimano Shadow Low-Profile Rear DerailleurThe mechanism rear derailleur, Shimano Shadow RD, is intended for more aggressive riding. Its super low profile design carries many benefits. Because of its low profile and single tension construction, the derailleur does not hit the chain stay in rough riding conditions. The result is smooth and silent performance. Features: Fastest ever rear shifting, 58% faster than RD-R9150 Compact design includes an integrated wireless unit, charger, and switch LED status indicator Battery indicator Pairing Adjust mode, etc. Wider range capacity Max. Low Sprocket: 34T Speeds: 12-Speed Weight: 262gA 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.
Shimano Acera M360 7/8sp Rear DerailleurThe Shimano Acera M360 7/8-Speed Rear Mech offers precise shifting and over-size pulleys for a wide gear choice. This rear mountain bike derailleur is compatible with 7 and 8-speed drivetrains and the included extension spring and low-friction fluorine-coated link pivot bushing result in a light shifting action.Features: Speed: 7 and 8-speed compatible Cage Type: Long cage Mounting: Conventional Clutch Option: No Compatibility: Mountain bikes and City bikes with Shimano 7 or 8 speed flat bar shifters Oversize 13-tooth tension and guide pulleys to reduce noise and wear Extension spring and low-friction fluorine-coated link pivot bushing result in a light shifting action Top normal spring for use with RapidFire shifters Recommended Chains: IG (Interglide) and HG (Hyperglide) chain For use with 28 to 34 tooth low rear sprockets Capacity: 43 teeth Weight: 340g (approx)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.
Shimano Acera M360 7/8sp Rear DerailleurThe Shimano Acera M360 7/8-Speed Rear Mech offers precise shifting and over-size pulleys for a wide gear choice. This rear mountain bike derailleur is compatible with 7 and 8-speed drivetrains and the included extension spring and low-friction fluorine-coated link pivot bushing result in a light shifting action.Features: Speed: 7 and 8-speed compatible Cage Type: Long cage Mounting: Conventional Clutch Option: No Compatibility: Mountain bikes and City bikes with Shimano 7 or 8 speed flat bar shifters Oversize 13-tooth tension and guide pulleys to reduce noise and wear Extension spring and low-friction fluorine-coated link pivot bushing result in a light shifting action Top normal spring for use with RapidFire shifters Recommended Chains: IG (Interglide) and HG (Hyperglide) chain For use with 28 to 34 tooth low rear sprockets Capacity: 43 teeth Weight: 340g (approx)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.