Originally Posted by
50PlusCycling
I have no frame rub, the chain does line up in center. I get noise from some deflection from the chain in the lowest gear on the cassette, it goes away when I shift up to the next gear.
Right. So there must be some differences in frame dimensions among the Birdy's: R&M, Pacific, and Bianchi, and over time. Speculation: R&M could have made the suspension hinge slightly wider, to reduce sideways flex and hinge wear.
Anyway. Here are some shots from my ride on Constitution Day, on Sunday:
Constitution Day ride
Svarstad, Norway