tarmacand onto the dirt is a trend that's likely not going away. Most dirt roads are bumpy, littered with potholes, washboards, and chunky gravel. Hearing the rear derailleur knock against the chainstay is somewhat ridiculous since Shimano has a very elegant clutch mechanism in its repertoire...
a clutch to keep your chain in check over rough ground. The new line-up includes mechanical RX400 and RX800 options, plus RX800 Di2 versions. The Tiagra-level 10-speed RX400 rear derailleur is intended for cassettes ranging from 11-30t to 11-36t.The mountain bike DNA of the GRX ...