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 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 10/11 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.
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.
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!
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 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.
The RD-M786 rear derailleur with Shadow technology is optimised for trail riding with the addition of an innovative new friction clutch mechanism which actively prevents the derailleur cage moving forwards under tension, all but eliminating chain slap and helping to prevent chain suck and dropping, ideal for more aggressive trail riders. The tension can be removed with the used of an integrated lever which facilitates easy wheel removal and gear indexing.The familiar 'Shadow' low profile design architecture keeps the derailleur and it's pulley cage closely tucked in to prevent impact damage from trail hazards whilst also eliminating chainstay contact and trail chatter, similarly the direct cable routing prevents snagging. Whilst a modified cable pull-ratio (which requires the same pressure regardless of the position on the cassette) helps resist the effects of cable contamination to maintain shift quality for longer.
Features:Shimano's Direct Mount compatible Rear Derailleur system gives more space around the rear frame dropout resulting in easier rear wheel removal but also allows frame designers to shorten chain stays, increase axel sizes and move suspension pivotsDirect Mount gives a simpler, cleaner lookDeore XT Shadow+ Dyna-Sys11 11-speed rear derailleur delivers reliable and precise shifting with a stiff and lightweight open designShadow+ features a super low profile design that reduces the risk of damage from trail side hazardsThe shadow plus chain stabilizer tension can easily be adjusted externally via a hex keyShadow Plus 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 wheelShadow design slant angle has been optimized for use with 40-46T sprocketsDirect cable routing prevents snagging from any trail side hazardsFour 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 shiftStrong return spring for a positive shifting feelDurable sealed bearing pulleys40T (46T for 1x 11-speed) capacity GS cage
Shimano Saint M820 10sp Rear Derailleur New chain control and silencing technologies in the new RD-M820 are a game changer for gravity riding. In addition to the proven Shadow Plus RD design, a Saint specific, high durometer urethane bump stopper (between the RD and the dropout) was added to reduce impact noise.Now 10-speed, the new RD-M820 features a durable super wide link that serves as the backbone of the DH parallelogram. Ready for track and trail, the mode converter easily adapts between two settings for MTB cassette gear ratios (11-32, 11-34, 11-36) and road (11-23, 11-25, 11-28). Features: Direct Mount gives a simpler, cleaner lookDelivers reliable and precise shifting with a stiff and lightweight open design Shadow+ features a super low profile design that reduces the risk of damage from trail side hazards Shadow Plus 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 durability Four fluorine-coated link pin bushings make this one of the slickest shifting derailleurs on the trails High rigidity wide outer link braces the pulley body to increase pivot joint rigidity resulting in a crisp shiftStrong return spring for a positive shifting feelDurable sealed bearing pulleys25T capacity SS cage10-speed onlyUrethane elastomer bump stop reduces noiseMode converter (DH mode/Freeride mode)Super wide links: Create a rigid structure that resists twisting and improves durabilityIntegrated skid plate: Protects the derailleur in the event of an impactA 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 M7000 11sp Rear DerailleurWith a revised design and enhanced by technologies from Shimano's top-end models, the SLX M7000 rear mech performs better than ever. Ready to help you to attack the trails, it has the Shadow RD+ technology and an improved geometry to increase its stability. The adjustable "clutch" type stabiliser can be switched to be more rigid for chain better chain retention or switched for easier shifting.Features:Speed: 11 Speed Shifting Action: Shadow RD+ Mount Type: Direct attachment (Conventional)/Direct mount compatible (w/o bracket spec available) Maximum Sprocket: 42T (2x11-speed); 46T (1x11-speed) Minimum Sprocket: 11T Front Difference: MAX 10T Total Capacity: 41T Clutch Type: Yes Compatibility: All Shimano flat bar 11 speed shifters Shadow design with optimised, shallow slant angle, low profile design 20% reduced shift effort Chain stability improved Improved driving and shifting stability Adjustable clutch tension High efficiency pulleys 1x11 and 2x11 compatible Manufacturer's Reference Code: RDM700011GS Weight: 323g (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 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.