Originally Posted by Davet
18 speed? Does that mean 2 in the front and 9 in the rear or 3 in front and 6 in the rear?
If it's 2x9, then only a 9 speed chain will work. If it's 3x6, then get an 8 speed chain - 5/6/7/8 speed use the same chain.
Shimano, SRAM, or KMC chains are probably the most common. Personally I prefer the SRAM and KMC mainly because they come with special links.
Something like KMC 8x93, SRAM 830, or Shimano HG40 or HG50 will work
Before you start this project though - you need to get a chain tool so you can remove the excess links.
Last edited by jsdavis; 04-05-14 at 08:01 PM.