Originally Posted by
fietsbob
Key to know Bolt circle diameter.. for the 34t in the middle, thats smallest on a 110 BCD.
smaller than that seek a smaller bcd.. as such a 22,32, 44t set is practical ..
compact mountain , many are 4 bolt now.. 110/74 are usually 5 bolt.
Sounds like you're talking about only changing out the chainrings. But I'm under the impresion that the Shimano AceraX crank set was bolted (or welded) together such that you can't replace individual chain rings like I can on the Gary Fisher. So based on my limited bicycle mechanical work to date, I think I have to change out the whole crank set.