This is a DH derailleur that is easier to shift, is incredibly precise and keeps the unwanted noise of chain slap to a minimum, so you can concentrate on the sweet feeling of nailing your line. GX DH — Get Some.
Designed for versatility, the SRAM GX Eagle rear derailleur features a robust aluminium inner and outer cage construction, which makes it more than ready to tackle whatever the off-road has to offer. SRAM has also equipped this tough mountain bike (MTB) rear mechanism with steel pulley bearings for additional durability on every ride. Developed around a backwards-compatible profile, this model works with both 10-50T and 10-52T cassettes for greater flexibility. Another benefit is its updated cage design that delivers greater chain retention than before and even more precise shifts, as you weave between the trails. The SRAM GX Eagle rear derailleur - 12 speed looks as amazing as it performs. - Backwards compatible, works with both 10-50T and 10-52T cassettes - Updated cage architecture provides better chain retention and precise shifts - Comes in GX Eagle™ master colourway as part of Eagle™ Colour system and goes with all colours of Eagle cassettes and chains Riders want the derailleur to do its job shifting on command, whether under climbing load or the stage finish. The GX Eagle™ derailleur gets it done with an updated cage architecture that improves chain management. Refined to work with the 10-52T cassettes, it’s also backwards compatible with the 10-50T versions. Giving riders choice, because that’s how it should be. Finished with the updated GX Eagle™ master colourway – to complement any cassette and chain colourway a rider wants from the Eagle™ Colour system. Further proof that the GX Eagle™ derailleur is there for one thing - to do the job.
By eliminating unwanted chain movement, X-HORIZON™ shifts faster, reducing shift effort and chain slap. Eact 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™ 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
Enhanced with X-Horizon shifting technology, the SRAM GX 11 speed rear derailleur eliminates ghost shifting and reduces shift force and chain slap. It also features the Cage Lock features, which locks the derailleur out of the way when removing and installing wheels to the process much easier. Technologies: Cage Lock: With Cage Lock technology in the rear derailleur, wheel removal and installation, as well as chain installation, becomes faster and simpler. Just pushing the cage forward to create slack and lock it into place. Roller Bearing Clutch: Roller Bearing Clutch (RBC) rear derailleurs deliver maximum drivetrain stability—even through the most punishing terrain. With RBC technology, derailleur bounce and chain slap are eliminated without sacrificing precision. X-Actuation: Developed specifically for SRAM 1X, X-Actuation keeps shifting sharp and consistent across the entire 10 to 42-tooth cassette. X-Horizon: The X-Horizon rear derailleur’s ‘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 gears. X-Sync: SRAM X-Sync 1X chainrings provide the highest level of performance and durability. The SRAM X-Sync tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-Sync chain rings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-Sync rings are an integral part of the SRAM 1X drivetrain.
With its updated link construction, the Shimano Dura-Ace R9100 front derailleur offers more cable routing options and an integrated cable tensioner. It delivers light, intuitive shifting and has been adapted to also be compatible with race-specific disc brake bikes. The internal toggle mechanism on this Shimano Dura-Ace R9100 front derailleur - braze on version provides greater clearance for larger tyres and it now features a built-in cable tension adjustment bolt meaning there is no need for inline barrel adjusters.
Part of the first-ever Shimano groupset that's specifically engineered for gravel riding, the fast and efficient Shimano GRX 810 rear derailleur is ready to take on any adventure. It's fully equipped for the harshest conditions thanks to its toggle clutch and switch stabiliser which can be turned on and off to match the terrain. Topped off with some of the finest technologies around, this is an ideal choice of upgrade for exploring further than ever before. 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 answered Shimano Shadow RD+: Less distraction quiet drive train. The rear derailleur stabiliser reduces chain slap. A simple solution for chain drop, it's lighter and more efficient than roller type chain device
Whether you're riding after work with your friends or taking on an exciting new adventure, the Shimano GRX 812 rear derailleur has you covered. You'll be able to 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. When riding over mixed terrain surfaces with gravel and mud, the RX812 derailleur remains silent and uninterrupted thanks to some of the finest industry-leading technologies. Its 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, the Shimano GRX 812 rear derailleur - 11 speed is an ideal choice of upgrade for an instant and reliable shifting experience.
With the new Super Record, Record, and Chorus groupsets, shifting is extremely easy thanks to the long front plate of the front mech body, meaning greater leverage and therefore truly reduced movement when shifting. Shifting precision is achieved thanks to the design of the new narrower cages. The semi-inner cage, in aluminium, has features that improve shifting speed. The most efficient downshifting on the market is achieved thanks to the integrated outer semi-cage in carbon fibre, a distinctive Campagnolo feature on the Super Record and Record front mechs, or by the positioning of a plate on the tip of the Chorus front mech. S2 System (Secure Shifting System) The special support system built into the derailleur safeguards working of the drivetrain, guaranteeing maximum compatibility with frames on the market. Special Inner Cage Design The inner semi-cage, in aluminium, has features that improve shifting speed, give greater rigidity and provides more space for chain crossovers
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.
Instead of simply moving back and forth, the derailleur cage actually rotates to maintain a consistent angular relationship with the chain. We call it Yaw Technology, and it eliminates the need for shifter trim. As a result, shifts feel more direct, more precise, and combined with the new SRAM RED crankset and chainrings, delivers an unmatched performance advantage in front shifting.
Featuring cutting-edge materials such as a carbon fibre outer and mid cage and a magnesium inner link, the WiFLi version of the SRAM Force 22 rear derailleur tips the scales at a mere 190g. Its wide range of adjustment and large cassette capacity makes it suitable for all types of riding, including epic climbs in the mountains and the muddiest cyclocross courses. Fitted with AeroGlide Pulleys with an updated tooth pulley design for a sound damping effect, the SRAM Force 22 rear derailleur - medium cage type brings you an ultra-efficient and silent ride experience. The bottom and top pulleys benefit from this feature. SRAM has also refined the tooth geometry of the jockey wheels. The result is that the chain runs smoother and quieter than ever before. With all the additional technologies, they have still managed to keep the weight the same, at well under 200 grams. Technologies: Exact Actuation™: When SRAM launched its road technology from scratch it reapplied its MTB proven SRAM 1:1 actuation ratio (shifter cable travel: derailleur movement) for 11 speed rear shifting. EA helps to simplify/stabilise the uneasy act of balancing rear derailleur hanger design, tight cog spacing and exact cable tension. The result: the easiest index shifting system to set up and it stays that way. WiFLi™: Wider - Faster - Lighter, SRAM's WiFLi™ Technology is based on the compact 2 x 11 - two front chainrings and 11 gears in the rear - design inherent in SRAM Apex and Rival, which delivers a wider range of gears than your standard triple, faster shifts through two chainrings and 11 gears, and with significant weight savings. It's the newest technology from the company that continues to innovate the cycling experience.
With the new Super Record, Record, and Chorus groupsets, shifting is extremely easy thanks to the long front plate of the front mech body, meaning greater leverage and therefore truly reduced movement when shifting. Shifting precision is achieved thanks to the design of the new narrower cages. The semi-inner cage, in aluminium, has features that improve shifting speed. The most efficient downshifting on the market is achieved thanks to the integrated outer semi-cage in carbon fibre, a distinctive Campagnolo feature on the Super Record and Record front mechs, or by the positioning of a plate on the tip of the Chorus front mech. S2 System (Secure Shifting System) The special support system built into the derailleur safeguards working of the drivetrain, guaranteeing maximum compatibility with frames on the market. Special Inner Cage Design The inner semi-cage, in aluminium, has features that improve shifting speed, give greater rigidity and provides more space for chain crossovers