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...

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...

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...

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...

Gravel cycling is a bit of an enigma. While it's mostly new to the scene, it manages to evoke nostalgic feelings that we don't really get from modern road cycling these days. Between wool jerseys, steel frames with drop bars, and a sense of adventure that doesn't stop when the tarmac ends, it...

Enhanced chain security and quieter, more stable shifting for gravel riding

Shimano's refinements to the latest Ultegra Di2 group are truly remarkable, and while we always fancy a full Dura-Ace build, we'd be hard pressed to decipher a difference in performance. That makes sense since Ultegra gets Dura Ace trickle down technology, and for rear derailleurs, the RD-R8050...

Shimano has used Shadow technology for years on its mountain bike rear derailleurs. It allows for a lower profile and places the derailleur further inboard, keeping them out of harm's way and allowing a better chain path off the top jockey wheel in relation to the cassette. Shimano's R9100 group...

Shimano Di2 got better, and faster, with the Shimano Ultegra RD-R8150 Di2 Rear Derailleur. We notice the smooth and quick shifting up our 12-gears of range no matter what conditions exist. The derailleur works with up to a 34t cassette that allows for plenty of low gearing range for the biggest...