Also, if you don't have a cable puller, an easy way to tension the RD cable is to put the chain on the second smallest cog, then tighten the cable bolt. Cable p

Also, if you don't have a cable puller, an easy way to tension the RD cable is to put the chain on the second smallest cog, then tighten the cable bolt. Cable pullers are really worth the money, though. Especially for cantis.