Hello out there Shimano people; I was wondering if the gears in the Tiagra 50 will fit the 30????? As I would like a little slower gear ratio, I,d sure like to know?????
Do they seem similar? somebody should know!!!!!!! I have ever seen the insides of a 50 yet. I realize the cost may be high, but is it do-- able?????? Id appreciate some info. thanks gst.
http://www.cals2speed.com/whatsnew.html
The 30A and 30WLRSA are interchangeable
The 50A, 50WLRSA, and 80WA are interchangeable
Otherwise, I believe you have to order the gear set from Cal