Originally Posted by
SirMike1983
Hmm those all seem to note 3/32 as their size- would a 3/32 cog fit a standard stock chain (1/8)? I assumed they were different, but if I'm wrong about this- let me know.
http://sheldonbrown.com/harris/sturm...html#sprockets
I was looking in particular at the solid 22 tooth, or perhaps the 20 tooth. Would those fit the stock set up? I assumed not at first because I didn't think 3/32 and 1/8 would interchange.
Everything works with 1/8" chain, 'cause it's wider.
3/32" chain only works with the thin sprockets. You have to use 1/8" chain because of the chainwheel in front, so that's not a concern.
You will nee a new chain, though, because your original chain won't be long enough. Going from 18 to 22 means you need to move the axle forward by 1/2" (12.7 mm) and you probably don't have enough room in the dropout slot for that.
Sheldon "1/8 Inch Per Tooth" Brown