Shimano Ultegra R8000 11 Speed Rear DerailleurNow compatible with a wider range of cassette tooth count options, the Ultegra R8000 11 Speed Rear Derailleur delivers has been optimised by Shimano to offer fast and accurate gear shifts with minimal rider effort. In addition to the slick shifting, it also adopts the “Shadow” cage design to sit closer to your bike's frame. This improving its aerodynamics and protects it should you be unlucky enough to have a crash. Race-ready, it’s made in two different cage sizes to suit your cassette size preference.Key Features: Material: Alloy Colour: Grey Speed: 11-Speed Compatibility: All Shimano 2x11-Speed road drivetrainsCage Size: Separate short and medium cage size options Cassette Size Capacity: Short Cage: 11-25T to 11-30T; Medium Cage: 11-28T to 11-34T Total Capacity: Short Cage: 35T; Medium Cage: 39T Mounting: Standard hanger mount or direct mount Clutch Type: No Shadow Technology Low-profile design Precise and accurate shifting Manufacturer's Part Number: Short Cage: RD-R8000-SS; Medium Cage: RD-R8000-GS Weight: Short Cage: 200g; Medium Cage: 210gTechnologies: Shadow RD: Traditional derailleurs extend wider than the profile of your bike. With its low-profile design, Shadow RD (Reduced main derailleur body) is a more compact derailleur that fits closer to the frame, with more direct cable routing. Shadow RD maintains a consistent distance to the cassette for increased shift stability. The reduced body width creates a sleek and smooth appearance, ensuring less damage in a crashA 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 105 R7000 11 Speed Rear DerailleurBoasting the best of Shimano's Shadow technology, the 105 R7000 11 Speed Rear Derailleur offers unrivalled smooth shifting performance that stabilises the chainset movement and keeps the derailleur close to the chainstay. Incredibly reliable it offers precise drivetrain performance and a wide gear ratio ensuring a smooth shift performance that is durable, versatile and efficient. Features: Material: Aluminium Drivetrain Speed: 11-Speed Compatible Chain: HG-EV 11-Speed / HG-X11 Pulley Teeth: 11T Weight: Short Cage: 225g; Medium Cage 232g Cassette Capacities: Short Cage Option: Total Capacity: 35T Max Front Ratio Difference: 16T Low Sprocket: Max: 30T; Min: 25T Top Sprocket: Max: 14T; Min: 11T Maximum Cassette Size: 11-30T Medium Cage Option: Total Capacity: 39T Max Front Ratio Difference: 16T Low Sprocket: Max: 34T; Min: 28T Top Sprocket: Max: 12T; Min: 11T Maximum Cassette Size: 11-34TBuy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano 105 R7000 11 Speed Rear DerailleurBoasting the best of Shimano's Shadow technology, the 105 R7000 11 Speed Rear Derailleur offers unrivalled smooth shifting performance that stabilises the chainset movement and keeps the derailleur close to the chainstay. Incredibly reliable it offers precise drivetrain performance and a wide gear ratio ensuring a smooth shift performance that is durable, versatile and efficient. Features: Material: Aluminium Drivetrain Speed: 11-Speed Compatible Chain: HG-EV 11-Speed / HG-X11 Pulley Teeth: 11T Weight: Short Cage: 225g; Medium Cage 232g Cassette Capacities: Short Cage Option: Total Capacity: 35T Max Front Ratio Difference: 16T Low Sprocket: Max: 30T; Min: 25T Top Sprocket: Max: 14T; Min: 11T Maximum Cassette Size: 11-30T Medium Cage Option: Total Capacity: 39T Max Front Ratio Difference: 16T Low Sprocket: Max: 34T; Min: 28T Top Sprocket: Max: 12T; Min: 11T Maximum Cassette Size: 11-34TBuy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano XTR M9100 12sp Rear DerailleurThe Shimano XTR M9100 Rear Derailleur features an elegant, refined and optimised design, which is aimed at providing maximum drivetrain efficiency over the most demanding terrain. Featuring oversized 13T pulley wheels, updated Shadow RD+ mechanism and is tailored specifically to provide maximum chain retention and shifting accuracy across the new Shimano 12-Speed drivetrain transmission system.Features: Material: Aluminium, Stainless Steel Use: MTB Speed: 12 speed Compatible Chain: HG 12-speed Low Sprocket Max/Min: M Option: 45T; L Option: 51T Top Sprocket Max/Min: M Option: 10T; L Option: 10T Total Capacity: M Option: 35T; L Option: 41T Pulley Teeth: 13T Pulley Bearings: Sealed Spring Type: Shimano Shadow RD+ Weight: M Option: 237g; L Option: 240gBuy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano GRX 817 Di2 1x11sp Rear DerailleurThis stunning rear mech is engineered to give you perfect shifting performance when riding on rough roads, gravel and muddy conditions. Ready to take on any challenge, the RX817 features an adjustable chain stabiliser which prevents chain slapping and drops. Shimano has also included a switch stabiliser which can be set to on/off to match the terrain conditions, which allows you more freedom to explore the unknown. Gravel-Tuned Rear ShiftingInspired by off-road groupsets, you'll enjoy its silent and uninterrupted rear shifting on harsher terrain conditions, where most common systems would fail. Whether you're planning a new adventure or joining friends after work for a ride out, this superb model's gravel-tuned clutch makes gear changing a breeze in any situation.Smooth and reliable, this rear derailleur features some of the finest technologies to keep you riding at the top of your game. Its revolutionary Di2 shifting system solves many of the challenges that mechanical systems face with the use of state-of-the-art electronics. This technology gives you instant, accurate and lightning-fast shifts every time you ride, at the push of a button. You'll also be able to change gear when under heavy load while climbing and accelerating for a top-level shifting experience.Features: Use: Gravel, Road Speed: 11 speed Link Bushings: 4 fluoric coated link bushings Low Sprocket Max: 42T Low Sprocket Min: 40T Top Sprocket Max: 11T Top Sprocket Min: 11T Total Capacity: 31T Spring Type: Shadow RD+Technologies: Di2: The revolutionary DI2 shifting system solves the challenges drivetrains present to the power-delivery equation in cycling. DI2 gives you instant, accurate, lighting-fast shifts the first and every time, at the push of a button. Even in the most extreme conditions, shifting is precise and controlled. You can change gear even under heavy load while climbing or accelerating. With DI2, you are in complete control. E Tube: The E-TUBE platform's “Plug & play” and D-FLY wireless connections make it easier than ever to check the system's status, and apply customized settings to DI2 and Shimano Steps components with a PC, tablet or smart phone. SEIS: The SEIS innovative shift technology is still based on the Shimano Index System (SIS) that has proved its superior gear changing characteristics over the years. The big difference is that in this case, the shifting action is provided for by electronics instead of mechanics. This electronic shifting system has been extensively tested over past two years by several professional riders in all conditions possible, such as rain, mud, low temperatures, cobble stone roads and combinations of all of these at the same time. Shifting is executed by simply pressing the button. No power is needed to shift, which gives important advantages since it is easier now to always keep a tight grip on the handlebar and to keep your concentration on riding instead on shifting. Shadow RD+: Less distraction quiet drive train. Rear derailleur stabilizer 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 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 RD-5800 105 11 Speed Jockey WheelsThese jockey wheels are specifically designed for use with Shimano RD-5800 rear derailleurs. Coming equipped with one tension pulley and one guide pulley, these jockey wheels are an excellent upgrade for keeping your drivetrain running smoothly and friction-free. Features:Speed: 11 speedRear Derailleur Compatibility: Shimano RD-5800 Includes: x1 tension pulley and x1 guide pulleyManufacturer Part Numbers:Short Cage: Y5YE98080Medium Cage: Y5YE98090A 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 Deore XT M786 10 Speed Rear DerailleurEnhanced with Shimano’s “Shadow+” chain stabilising clutch, the Deore XT M786 rear mechanism delivers excellent chain retention as you take on the toughest trails. Compatible with Shimano's entire 10-Speed mountain bike (MTB) range, it's constructed with fluorine-coated inner bushings for smoother operation and lightning-quick gear changes. The switchable clutch is engaged to add chain tension for riding over tree roots, rock gardens and the toughest sections of the trail, then when you need to remove your rear wheel, simply switch it back to slacken the chain.Features:Material: Aluminium Alloy Speed: 10-Speed Cage Size: Long Mount Type: Standard hanger mount or direct mount Clutch Type: Yes Compatibility: All 10-Speed Shimano Mountain Bike (MTB) drivetrains Maximum Low Gear Sprocket: 36T Minimum Low Gear Sprocket: 32T Maximum Front Difference: 18T Capacity: 35T Strong return spring for a positive shifting feel Durable sealed bearing pulleys Direct Mount compatible for a simpler, cleaner look Dyna-Sys technology delivers reliable and precise shifting with a stiff and lightweight open design Features a "Shadow" cage with a super low profile design that reduces the risk of damage from trail side hazards Features a "Shadow Plus" clutch which uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting. This can be switched off to remove the wheelDirect cable routing prevents snagging from any trail side hazardsAll-alloy construction leads to lower weight without compromising strength and durabilityFour fluorine-coated link pin bushings make this one of the slickest shifting derailleurs on the trailsHigh rigidity wide outer link braces the pulley body to increase pivot joint rigidity resulting in a crisp shift Manufacturer's Part Number: RD-M786-GSWeight: 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 XT M781 10sp Rear DerailleurThis Shimano XT M781 Shadow 10-Speed Rear Mech has efficiency as its key principle. The XT Shadow rear derailleur is designed with a longer swing arm and a tighter spring for crisper shifting. The Dyna-Sys rear derailleur will stay in adjustment longer and deliver consistent performance with each ride.Features:Material: AlloyDeore XT Shadow Dyna-Sys 10-speed rear derailleur delivers reliable and precise shifting with a stiff and lightweight open designShimano's new Direct Mount Rear Derailleur system gives more space around the rear frame dropout resulting in easier rear wheel removal but also allows frame designers to shorten chainstays, increase axel sizes and move suspension pivotsDirect Mount gives a simpler, cleaner lookShadow features a super low-profile design that reduces the risk of damage from trail side hazardsSingle tension spring prevents contact with the chainstay resulting in a silent rideDirect cable routing prevents snagging from any trail side hazardsLower weightFour fluorine-coated link pin bushingsHigh rigidity wide outer link braces the pulley bodyStrong return spring for a positive shifting feelImproved cable pull ratio provides a more accurate shift actionDyna-Sys 10-speed compatible onlyDurable sealed bearing pulleysTop normal spring uses the spring to select higher gearsCapacity: 35TWeight: 234gA 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 M781 10sp Rear DerailleurThis Shimano XT M781 Shadow 10-Speed Rear Mech has efficiency as its key principle. The XT Shadow rear derailleur is designed with a longer swing arm and a tighter spring for crisper shifting. The Dyna-Sys rear derailleur will stay in adjustment longer and deliver consistent performance with each ride.Features:Material: AlloyDeore XT Shadow Dyna-Sys 10-speed rear derailleur delivers reliable and precise shifting with a stiff and lightweight open designShimano's new Direct Mount Rear Derailleur system gives more space around the rear frame dropout resulting in easier rear wheel removal but also allows frame designers to shorten chainstays, increase axel sizes and move suspension pivotsDirect Mount gives a simpler, cleaner lookShadow features a super low-profile design that reduces the risk of damage from trail side hazardsSingle tension spring prevents contact with the chainstay resulting in a silent rideDirect cable routing prevents snagging from any trail side hazardsLower weightFour fluorine-coated link pin bushingsHigh rigidity wide outer link braces the pulley bodyStrong return spring for a positive shifting feelImproved cable pull ratio provides a more accurate shift actionDyna-Sys 10-speed compatible onlyDurable sealed bearing pulleysTop normal spring uses the spring to select higher gearsCapacity: 35TWeight: 234gA 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 SLX M7100 1x12sp Rear DerailleurThe SLX M7100 1x12 Speed Rear Derailleur from Shimano is a high-quality 12-Speed rear derailleur with a Shimano pulley cage bumper for total protection out on the trails and a smooth-shifting and ultra-silent drivetrain.This superb model features a low-profile design which provides you with an advanced level of shifting performance, so you can confidently dominate on the trails. Weave your way around the mountain thanks to its fast gear shifting performance which ensures your drivetrain remains stable, even on the roughest of terrain conditions. This is a perfect choice of upgrade for off-road thrill-seekers who want smoother and more precise gear shifting performance. This 12-Speed derailleur offers fast and dependable shifting for more stable performance on rough off-road terrains. It also features a low-profile design that's optimised for superior shifting accuracy on wide-ranging 12-Speed Shimano drivetrain systems. It ensures advanced shifting performance and more confidence to enjoy the trails and its added pulley cage bumper both protects it from trailside obstacles and also keeps it running silently in all gear positions. Features: Material: Alloy Size: Medium Cage Speed: 12-Speed Use: MTB Compatible Chain: HG 12-Speed Bushings: 4 fluoric coated link bushings Low Sprocket Max: 51T; Low Sprocket Min: 45T Top Sprocket Max: 10T; Top Sprocket Min: 10T Total Capacity: 41T; Pulley Teeth: 13T Spring Type: Shimano Shadow RD+Technologies: Shimano Shadow RD+: Less distraction and a quieter drive train. The rear derailleur stabiliser reduces chain slap. A simple solution for chain drop. Lighter and more efficient than a roller type chain device.Manufacturer Part Number: RDM7100SGSBuy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.