I'm planning to build a steel lugged frame and equip it with downtube friction shifting. My question is:
- Do Dura Ace 7900 downtube shifters come with friction mode? The left lever does not have a D-Ring for switching between SIS and friction mode according to my observation. If not, which model of Dura Ace shifters offers friction mode?
- Do downtube shifters have a predefined shifting cable travel so that the older DA friction shifters could not be used on 10 or 11 speed cassette simply because there is not enough cable travel?
- Apart from Cane Creek, are there other manufacturers who offer aero brake levers?