Originally Posted by
Jipe
I think there is a misunderstanding about the type of Birdy.
JRat had a Riese & Müller Birdy City, not a Pacific Cycles Birdy 9SP STD.
The Birdy City from Riese & Müller has a Shimano Nexus IGH and like all R&M Birdy it has a hollow crankset.
The 2019 TI Birdy has a totally different crankset, its a FSA SLK-Light with integrated axle. Its not possible to use spacers with this crankset.
And also, the Ti Birdy frame is totally different from the Birdy 3 frame. All frame dimensions are different, even the wheel base is different, its about 20mm smaller than the Birdy 3 wheel base (I have a R&M Birdy 3 Touring and a Pacific Cycles TI Birdy 2019 and compared the two frames).
Good to know something new everyday. Thanks!
As for the Ti 2019. For those different things like the wheel base length and such, the drive chain system is basically the same. Same BB shell width, same rear wheel drop out width. Thus the chainline should be the same like any ordinary B3. And yet they chose that crankset that will cause the chain to scratch the FD. I can't take it as simply they are different so the problem happens on a premium bike.
What I wanted to say is, basically PC shouldn't have choosen that crankset from the beginning.