Shimano Ultegra RX clutch derailleur cobble-tested

Ben and Josh test chain-quieting tech in Belgium and France

Shimano Ultegra RX clutch derailleur first ride

Shimano's road clutch rear derailleur, the Ultegra RX, first surfaced before the Tour of Flanders in April. Although Shimano wasn't yet ready to send out samples, I asked Trek-Segafredo to borrow one of the team's units.

After a quick hotel-room install, my colleague Josh Evans and I took a clutch-equipped Trek Madone and a standard Trek Madone out for a few days of riding.

Watch our short video for impressions on how the technology works on cobbles, rough roads and smooth roads.

Ben Delaney

US Editor-in-Chief
Ben has been writing about bikes since 2000, covering everything from the Tour de France to Asian manufacturing to kids' bikes. The former editor-in-chief of VeloNews, he began racing in college while getting a journalism degree at the University of New Mexico. Based in the cycling-crazed city of Boulder, Colorado, with his wife and two kids, Ben enjoys riding most every day.
  • Discipline: Road (paved or otherwise), cyclocross and sometimes mountain. His tri-curious phase seems to have passed, thankfully
  • Preferred Terrain: Quiet mountain roads leading to places unknown
  • Current Bikes: Scott Foil Team Issue, Specialized S-Works Tarmac, Priority Eight city bike... and a constant rotation of test bikes
  • Dream Bike: A BMC Teammachine SLR01 with disc brakes and clearance for 30mm tires (doesn't yet exist)
  • Beer of Choice: Saison Dupont
  • Location: Boulder, CO, USA

Related Articles

Back to top