Originally Posted by
Ritterview
Boy, am I glad I am happy with using TA middle and inner rings, and do not have to figure this out.
I still don't know, however, with transitioning from a 30t [53-42-30] to a 28t inner ring, what is the largest size middle ring to use (39t?), and with a 39t middle ring, what is the largest outer ring that could be used?
FYI, I don't recommend the TA 28t. We wore ours out in half a season. The chain would actually slip on the chainring on steep grades, scary and no fun. Switched to a salsa and problem was solved. There are no ramps/pins on the middle ring anyway, so might as well get the ring with the most secure tooth profile. Save the fancy rings for the outer and middle.
Just ordered a DA 53t and a 39t (which I now know won't work), but I have a low miles FSA 39t that I will try. I could also bust out the grinder and modify that DA 39t
My 53t was worn, and I wanted something better than the FSA. The only shift up front that is not smooth is the middle to outer shift. So I am looking forward to the DA 53t!