Compatible with a cassette tooth count range of 11-28T to 11-34T and adopting Shadow technology from Shimano's mountain bike (MTB) range, the Shimano Ultegra R8000 rear derailleur ensures a smooth ride in even the highest and steepest mountain areas. The integrated Shadow technology is race-proven and with its low profile design, this slick operating road rear derailleur is aerodynamic, more compact and fits closer to the frame, ensuring less damage in a crash. Technologies: Shadow: Shadow design features a super low profile design and optimised slant angle for super light shifting action. HG-EV: HG-EV cassette sprocket is for rider-tuned gear combination and cadence management. Shimano provides the optimal 11-speed drivetrain gear ratio; you can choose from the wider and closer gear combinations available to match various riding disciplines. HG-EV cassette sprocket is obtained 11-speed gear without compromising the 10-speed durability and improved HYPERGLIDE shifting HG-X11 Chain Compatible: Silky driving, accurate shifting. HG-X11 directional chain ensures smoother shifts and greater overall performance. The right and left sides are optimised for front and rear shifting respectively
The SRAM Force rear derailleur represents the same design philosophy that has yielded SRAM’s best-in-class products for the mountain bike (MTB) market. It takes advantage of Exact Actuation, an actuation ratio that delivers precise 3mm shifts in every gear along with the widest range of adjustments available, delivering the best 10-speed performance in the sport. Crafted with cutting-edge materials, the SRAM Force rear derailleur - 10 speed model includes a carbon fibre outer cage and a magnesium inner link. The final result is an impressively lightweight unit that tips the scales at only 174g. Technologies: 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.
The Potenza rear derailleur takes a great deal of inspiration from the recently launched Revolution 11+ drivetrains and guarantees a similar degree of shifting performance as a result. Changing only the materials used in its construction, the Potenza 11™ rear derailleur is capable of shifting with the precision and speed of the Super Record version with the only compromise coming in the form of weight. In addition to the form and structure of the component Embrace Technology, introduced on the Super Record, Record e Chorus groupsets launched last year has been incorporated into the performance of the Potenza 11™ rear derailleur. The form of the external pieces allow the rear derailleur to move at a different angle and the internal design pulls the chain closer to the cassette. This translates into better power transfer, more secure grip, better chain/cassette interface and a longer life for consumable components. The chain will grip more teeth (when compared to rear derailleurs without Embrace Technology) and as a result disperse energy across a larger surface area, increasing the life of the cassette and lengthening the lifespan of the chain as well. By allowing the derailleur to work closer to the cassette in every position the athlete can now take advantage of perfect alignment between cassette and rear derailleur in any given gear. The internal structure of the original Revolution 11+ rear derailleur was modified slightly to produce the Potenza 11™ version in order to offer the same fantastic transmission while accepting larger gearing up to a 32 tooth cassette. The rear derailleur will be available in two versions; one with a 55mm cage and the other with a 72,5mm (Medium) cage designed to be compatible with the all-new 11-32 cassette.
This top-quality model has been specially designed by the Campagnolo Tech Lab for the most advanced functionality and effortless shifting experience possible. Additionally, what’s most impressive is the micro-adjustments to the front derailleur position, which make upshifting and downshifting effortless, on steep slopes and unexpected road conditions. This superb model is compatible with tyres up to 32mm, thanks to a new upper connecting rod and optimised design. Finally, this is the perfect choice for keeping your riding at its peak performance, ride after ride. Technologies: Upper connecting rod not connected to the external one: More effective, precise movement, without contacting the limit stop. Cage plate designed to improve occurrences of maximal chain crossing: The derailleur avoids contact and friction with the transmission. Ideal for wider tyres: Tyres of up to a 32 mm cross-section can be fitted without risking contact with the front derailleur. Optimised inner cage plate design: Accurately accompanies the chain on the largest chainring. Cable fixed in double position: Maximum compatibility with frames.
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
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.
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.
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.
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
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.
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.
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