The bike I chose when we arrived at the Shimano tent was equipped with a Dura-Ace R9150 rear derailleur, which let me experience some non-clutch riding on the Allied platform. The roads featured a ...

so they can also work with old Dura-Ace shifters. The Hubbub modification was originated by Brian Jenks, proprietor of Hubbub Cycles. It's just a different way of clamping the cable on a standard ...

This was tested with the Ultegra FD-6770. RD: your 11 speed Rear Derailleur. This was tested with the Ultegra RD-6870. Should work with DURA-ACE RD-9070 as well. Battery: your external battery. This ...