Shimano appears to be developing a radical new rear derailleur, with a three-pulley design that could wave goodbye to clutch adjustment, according to a patent application filed by the Japanese brand.

A patent application filed by Shimano appears to show that the brand is working on an integrated rear derailleur, similar to what we've seen on SRAM's new T-Type Eagle Transmission. The patent drawing ...

There have been countless innovations to the rear derailleur over the years. These have included compatibility with an ever-increasing number of sprockets, the introduction of indexed shifting, STI ...

Then at the end of June, Shimano launched a new rear derailleur and shifter that centred around a new wireless rear ...