The Ekar rear derailleur’s all-new 1x13 speed specific design has been created especially for gravel and all-road. The combination of more than 70 moving parts lovingly crafted in carbon fibre, techno polymers and anodised alloys, with stainless steel bolts - exceed the demands of gravel and all-road riding. This unique combination of materials creates a derailleur which is lightweight, strong and durable for the rigours of this category of riding. It is able to combine quick, precise and reliable shifting with high chain security and toughness. The Ekar groupset has been designed for short evenly spaced shifts between gears and the 2D parallelogram trajectory of the derailleur allows for precise mechanical movement between the 13 sprockets. You can maintain your cadence, whatever terrain you are riding. Technologies: Revolutionary Clutch Lock design: for swift and easy wheel removal 2D parallelogram trajectory: for precise shifting 12T upper and 14T lower jockey wheels, both constructed in high-grade polymer: for smooth chain running and secure retention.
Shimano GRX 815 Di2 2x11 Gravel Front DerailleurThis 11 speed front mech is specifically designed for dominating on your gravel bike with the help of electronic technologies keeping you in control. Featuring a chainline that's 2.5mm wider than conventional road front mechs, the RX815 offers wider tyre clearance. You'll benefit from smooth and precise shifts with its 17T front range giving you a wider front gearing experience. Part of Shimano's exclusive series that's developed for riding over rough roads, gravel and mud, this tough component is reliable and high efficient. Fast Shifting Front MechFully equipped with Shimano's revolutionary Di2 shifting system, this derailleur solves the challenges most mechanical drivetrains are faced with by giving you instant, accurate and lightning-fast shifts. At the push of a button, you'll benefit from precise gear changes even when it's under a heavy load while climbing or accelerating. Whether you're exploring or riding after work with friends, this is the ultimate choice of upgrade for riders who want to remain in complete control.Features: Use: Gravel, Road Wider tyre clearance Wider front gearing range 17T front range Chainline +2.5 mm vs conventional road front derailleurTechnologies: Digital Integrated Intelligence: 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. Shimano Electronic Intelligent System: The SEIS innovative shift technology is still based on the Shimano Index System 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. 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.
Every detail of the 11-speed X1 X-HORIZON™ rear derailleur is engineered for smooth, reliable shifting action—from the larger upper pulley offset to the 12-tooth X-SYNC™ pulley wheels. 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 everLarge upper pulley offset automatically adjusts chain gap,X-HORIZON™ design reduces shift force, ghost shifting and chain slap,12-tooth X-SYNC™ pulley wheels,Aluminum Cage,Sealed cartridge bearings.
SRAM Force 1 11 Speed Rear DerailleurCyclocross-specific, the Force 1 derailleur brings you the same toughness and slick shifting ability of SRAM’s mountain bike (MTB) range. Designed for 1x11-Speed drivetrains and equipped with fully sealed bearings, it’s ready for the harshest trails.Quiet and Smooth Shifting PerformanceThe internal clutch design eliminates chain slack, making it almost impossible for the chain to fall off the chainring whilst cycling; a real benefit when riding on rough terrain. It also creates a noticeably smoother, quieter and higher performing drivetrain configuration for your bike.Features: Cage Material: Aluminium Pulley/Jockey Wheel Bearings: Steel sealed cartridge bearings Pulley/Jockey Wheel Tooth Count: 12T Speed: 11-Speed Compatibility: SRAM Force and all SRAM drop bar 11-speed shifters Mounting: Standard hanger mount Clutch Type: Yes Cable Pull Ratio: Exact Actuation Maximum Sprocket Size: Short Cage: 26T; Medium Cage: 36T; Long Cage: 42T Manufacturer's Part Number: RD-FRC-1-A2 Weight: Short Cage: 430g; Medium Cage: 434g; Long Cage: 439gTechnologies: Cage Lock: Wheel removal and installation, as well as chain installation, becomes faster and simpler. Just push the cage forward to create slack and lock it into place X-Sync: The X-Sync pulley features a 12-tooth design that helps control the chain’s lateral movement Roller Bearing Clutch: Maximum drivetrain stability even through the most punishing terrain. With Roller Bearing Clutch technology, derailleur bounce and chain slap are eliminated without sacrificing precision Exact Actuation: Simplified and stabilised shifting over tight cog spacing found on modern cassettes. By using exact cable tension, the end result is the easiest index shifting system to set up and it stays that way X-Horizon: The ‘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 gearsBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Force 1 11 Speed Rear DerailleurCyclocross-specific, the Force 1 derailleur brings you the same toughness and slick shifting ability of SRAM’s mountain bike (MTB) range. Designed for 1x11-Speed drivetrains and equipped with fully sealed bearings, it’s ready for the harshest trails.Quiet and Smooth Shifting PerformanceThe internal clutch design eliminates chain slack, making it almost impossible for the chain to fall off the chainring whilst cycling; a real benefit when riding on rough terrain. It also creates a noticeably smoother, quieter and higher performing drivetrain configuration for your bike.Features: Cage Material: Aluminium Pulley/Jockey Wheel Bearings: Steel sealed cartridge bearings Pulley/Jockey Wheel Tooth Count: 12T Speed: 11-Speed Compatibility: SRAM Force and all SRAM drop bar 11-speed shifters Mounting: Standard hanger mount Clutch Type: Yes Cable Pull Ratio: Exact Actuation Maximum Sprocket Size: Short Cage: 26T; Medium Cage: 36T; Long Cage: 42T Manufacturer's Part Number: RD-FRC-1-A2 Weight: Short Cage: 430g; Medium Cage: 434g; Long Cage: 439gTechnologies: Cage Lock: Wheel removal and installation, as well as chain installation, becomes faster and simpler. Just push the cage forward to create slack and lock it into place X-Sync: The X-Sync pulley features a 12-tooth design that helps control the chain’s lateral movement Roller Bearing Clutch: Maximum drivetrain stability even through the most punishing terrain. With Roller Bearing Clutch technology, derailleur bounce and chain slap are eliminated without sacrificing precision Exact Actuation: Simplified and stabilised shifting over tight cog spacing found on modern cassettes. By using exact cable tension, the end result is the easiest index shifting system to set up and it stays that way X-Horizon: The ‘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 gearsBuy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
-EXACT ACTUATION™ for fast and accurate shifts using SRAM’s 1:1® actuation ratio (shifter cable travel: derailleur movement) -X-SYNC™ pulley features a 12-tooth design that helps control the chain’s lateral movement -ROLLER BEARING CLUTCH™’s one-way roller clutch controls chain tension for consistent shifting -X-Horizon™ straight parallelogram design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force -Cage Lock™ technology makes for fast wheel changes or chain installation -A dedicated SRAM 1x™ rear derailleur
With this Shimano Ultegra Di2 front derailleur board your ride, quick and smooth front shifting is guaranteed under all circumstances, even when you’re shifting to the large chainring while riding out of the saddle. Due to Shimano Synchronised Shift, the front derailleur will shift automatically when the rear derailleur is shifted, allowing both of your road bike's Shimano Di2 derailleurs to work together efficiently. Customisable Electronic Shifting With the Semi- Synchronised Shift feature that’s also on the Shimano Ultegra Di2 R8050 front derailleur, it’s the other way around. The rear derailleur shifts automatically when the front derailleur is shifted, obtaining optimal front/rear gear positioning. At the same time, Di2’s auto-trim feature will automatically centre the front derailleur precisely around the chain, avoiding chain rub as you move the chain across the cassette. This is how fast, precise and smooth your shifting can be.
Key Features:Optimized for new drive system,10-45T (12-speed),10-45T (11-speed),Decreased rear derailleur tension at low gear position, to prevent high chain tension at low gear,Add bumper at rear derailleur pulley cage for silent drive,Bigger 13T pulley,28 mm better ground clearance (vs. RD-M9100-SGS),Enhance shifting performance,Low sprocket combination,Silent drivetrain,Low profile design,For more aggressive riding..
Campagnolo Record 12 Speed Rear DerailleurA superbly light and high performing derailleur that's engineered for effortless shifting, so you can reach your peak faster.Lightweight and Highly Durable DerailleurThe Record Rear Derailleur (12 Speed) from Campagnolo is the ideal choice of upgrade for getting the maximum shifting experience from your bike. Made from Carbon fibre-reinforced technopolymer which is not only super-lightweight but also highly robust for years of long-lasting use.Designed with the thrill-seekers and cycling enthusiasts in mind, the Record Rear Derailleur increases your speed, performance and shifting accuracy. The cage has been specially constructed to work alongside sprockets from 11 to 32 teeth which allow a single version to be maintained for all available sprocket sets. Thanks to its 3D Embrace technology which creates a double effect, your chain can maintain optimum traction every time.When riding over harsh roads, the derailleur maintains constant accuracy thanks to the spring between the upper body and the joint which absorbs vibrations, enabling you to have a smooth riding experience.The Record Rear Derailleur (12 Speed) from Campagnolo is the ideal choice for keeping you at the top of your game, ride after ride.Features: Material: Carbon fibre-reinforced technopolymer Constant accuracy Speed: 12 Speed The 12-tooth wheels mean smoother chain movement 3D Embrace technology Ability to adjust the initial derailleur position to adapt to each sprocket set Easy wheel replacement Weight: 0.216kg Buy Campagnolo Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
New mechanical Record 12 Speed rear derailleur: precision, lightness and versatility for use with the disc or rim brake groupsets.Designed to improve performance and function in every aspect, the new Record 12 Speed mechanical rear derailleur has an innovative shape that envelopes the sprockets better thanks to 3D Embrace technology, creating a double effect: allowing the chain to maintain optimum traction at all times, thus increasing the speed, power and precision of shifting; and ensuring that the derailleur is always kept an optimal distance away from the sprockets.The new cage has also been optimised to work with sprockets from 11 to 34 teeth, allowing a single version to be maintained for all available sprocket sets. The upper part of the new Record 12 Speed mechanical rear derailleur gearbox is made of carbon fibre-reinforced techno-polymer, contributing to its robustness and lightness, while the stop adjustment screws at the back of the rear derailleur make adjustments very simple. Technologies:Upper body in ULTRA-LIGHT technopolymer reinforced with UD Carbon Fibre,3D Embrace Technology: Movement of the rear derailleur is designed to make the chain embrace more teeth per sprocket to guarantee maximum traction,Optimised trajectory: Movement of the rear derailleur means that the upper pulley wheel is at constant distance to the sprocket in use,12-tooth pulley wheels: Perfect for cassettes that have a wide range of teeth,Optimised return spring: This guarantees constant chain tension regardless of road vibration,Versatile Hanger System: Standard or Direct mount hanger, perfect compatibility of rear derailleur with any frame: disc or rim, direct mount or classic hanger,. Key Features: Constant precision: On rough roads, the spring positioned between the upper body and the pivot absorbs the vibrations, ensuring the chain always rests properly on the sprockets, The pulley wheels on the 12-tooth derailleur cage allow the chain to move more smoothly,The initial position of the rear derailleur can be adjusted to suit any cassette,Easy wheel replacement: The rear derailleur is positioned further back, making it easier to slide the wheel out and replace it,Weight: 216g.
Shimano Ultegra Di2 R8050 11sp Front DerailleurRedesigned to be compatible with a wider 11-speed gear range but still retaining the same slick shifting ability, the Ultegra Di2 R8050 is a real game changer. Stiff and efficient enough to change gears cleanly even when you’re pedalling hard out of the saddle, it’s the ideal front derailleur upgrade for your Shimano Ultegra Di2-equipped road bike.Shimano Synchronised ShiftingUtilising Shimano's innovative Synchronised Shift, the front derailleur automatically shifts when the rear derailleur is shifted, which means that both derailleurs work together seamlessly. Conveniently, this shifting technology works the other way around, too; so, the rear derailleur shifts automatically when the front derailleur is shifted. This means you will always have optimal front/rear gear positioning. Di2’s auto-trim feature automatically centres the front derailleur precisely around the chain, which avoids chain rub as you travel across your cassette. Welcome to the New-Age of performance-oriented shifting.Features: Speed: 11-Speed Mount Type: Braze-On Compatibility: Ultegra R8000 Di2, Dura-Ace 9100 Di2 (Shimano 2x11-Speed electronic drivetrains only) Chain Stay Angle: 61-66° Top Gear Teeth: 46T-53T Total Capacity: 16T E-Tube Ports: 1 SD50 Ports: 1 Updated pull arm for more direct and easy shifting Improved clearanceUpgraded to shift under high pedalling torque Synchronised Shift (Full and semi-synchronised shifting program) Programmed chainguide control Redesigned to fit a wider gear pitch without sacrificing shifting performance Shorter rear-centre length (410mm) System communication with Di2 rear derailleur, meaning minimal chance of chain drop Weight: 132gTechnologies: Di2: The power and precision of Di2 is unmatched. It enables beautifully smooth shifting both front and rear. The lack of maintenance and adjustment is impressive: once you’ve customised your Di2 to shift to your preferences, it will continue to do so endlessly Shimano Synchronised Shift: With the customisation of the E-Tube Project app, both front and rear derailleurs are automatically selected for the most optimal gear combination 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 XTR M9120 12 Speed MTB Rear DerailleurThe Shimano XTR M9120 Rear Derailleur features an elegant, refined and optimised design, which is aimed at providing maximum drivetrain efficiency over the most demanding terrain. The derailleur has been redesigned to ensure that chain tension is decreased when in the low gear position (41T on cassette), which makes shifting easier while the Shadow+ mechanism ensures chain stability. 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 Drivetrain Speed: 12-Speed Low Sprocket Max: 45T Low Sprocket Min: 45T Top Sprocket Max: 10T Top Sprocket Min: 10T Total Capacity: 41T G Pulley Bearings: Sealed Link Bushings: Fluoric coated Pulley Teeth: 31T Spring Type: Shimano Shadow RD+ Compatible Chain: CN-M9100 Weight: 241gBuy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.