Shimano Ultegra DI2 R8050 GS medium Cage 11 speed Rear Derailleur, part of a  hill friendly bundle including an Ultegra R8000 34t cassette and KMC chain with 116 links.

This setup will also work with the earlier 6870 11 speed di2.

All items are brand new and 11 speed, this combination will allow the toughest of British and Alpine climbs to be attempted.

You are welcome to ring through with any questions you may have. Free tracked postage via royal mail using recycled packaging.