Hello. I could only find one new crankset for a traditional width chain, the shimano 2300. Are there any other options for a 6/7/8 speed crankset? Thanks for any help.

I'm pretty sure 3/32" cranksets & individual chain rings are way more common, new, used or NOS than 1/8", at least in the realm of C&V bikes. Keep looking.

I've stuck two "10-speed" cranksets on bikes with 7-speed drivetrains....While they're optimized for the narrower chain, it works fine (for me).

What crankset are you trying to replace, they are not hard to find at all......

Hmm. I'm putting a crankset onto a trek 760 frame. I was planning on using a 7-speed cassette, because, well, I don't really want more speeds than that. My understanding was that 9 and 10 speed cranksets would have the chainrings spaced too closely together.

before you start buying stuff, make a game plan. most all multispeed derailleur bikes are 3/32" pitch. a crank for a 8/910/+ speed just have slightly narrower (thinner) rings and the spacing between them is closer.

Ok; I guess I've been using the 3/32" measurement incorrectly. Apparently all road chains are 3/32", but 9/10 speed chains are still thinner, right? So I still have the same question. Has anyone else had success using 9/10 speed chainrings with an 8 speed chain? Do most people look for used parts when using fewer than 9 speeds?

I'll say yes as I have been using some newer chain wheels on older cranks with 7 and 8 speed chains. I currently, thanks to someone here, use a KMC 8.91 chain which the box labels as 24spd. I have used it mostly for 2x 7 spd setups both index and friction and it seems to work great.

I think the 9/10 speed chainrings are fairly backwards compatible, chains & spacing maybe not so much.