Campagnolo's new Ekar groupset brings the storied Italian brand back to off-road riding with a gravel-specific group. Named for the Cima Ekar, the 1x13 group offers the same or better range than previous 2x systems, in a lightweight and durable package to chase ribbons of farm road or mountain...

Designed from scratch to give you optimum performance, the best steering experience and maximum reliability for your gravel, all-road and endurance riding.

Built as part of the new Super Records 12 Wireless groupset, the Campagnolo Super Record 12 WRL Rear Derailleur brings us the reliable and fluid shifting we seek in a cable-free setup. Maximum shifting performance is delivered by a position sensor that allows the gear to position itself...

Precise, quick-shifting 12-speed road rear derailleurThe SHIMANO 105 12-speed rear derailleur combines the smooth and stable shifting that is a staple of SHIMANO SHADOW RD design with direct mount compatibility and a wider gear range capacity.

Shimano's 105 RD-R7000 Rear Derailleur is a budget-friendly option that offers a smooth ride. As far as 11-speed derailleurs go, this one delivers performance and worry-free shifting for confidence riding up and back down the mountain. Put your mind at ease and ride with your happy face on.

Shimano brings its ultra-reliable electronic shifting to the masses with the 105 RD-R7150 Di2 12-Speed Rear Derailleur. Pulling together all of the features we've come to love from their Dura-Ace and Ultegra Di2 road cycling systems, Shimano has created a low-profile rear derailleur that we can...

Shimano's new Dura-Ace Di2 RD-R9150 11-Speed Rear Derailleur boasts a sleek profile that practically hides from the wind and finally brings the Synchronized Shift functionality honed in the trail-focused XTR Di2 system onto the road. Enabling Synchronized Shift lets the Di2 system work its magic...

At a time when electronic drivetrains are gaining unstoppable traction, we appreciate that Shimano chose not to neglect its storied pro-level mechanical drivetrain for Di2, making careful, meticulous updates that have resulted in subtle, but significant, improvements to functionality. For those...

Shimano's refinements of the latest Dura-Ace Di2 group impress upon us the brand's need for speed, reliability, and performance. This is the group where Ultegra receives trickle-down technology from, and what we would categorize as top-tier. In particular, the Dura-Ace RD-R9250 Di2 Rear...

Following the trends in the bike industry, its not all that surprising that groupsets are taking to the gravel, and we appreciate the careful attention and time that Shimano took in designing the GRX RD-RX810 Rear Derailleur for powering through variable conditions on a drop-bar bike. If you've...