BB should feel smooth when you turn it by hand without cranks/chain, chain should be able to cover all gear combinations with the possible exception of the two biggest cogs on the cassette. other than that, wheel bearings? cassette body? pedals? well greased chain?
BB should feel smooth when you turn it by hand without cranks/chain, chain should be able to cover all gear combinations with the possible exception of the two biggest cogs on the cassette. other than that, wheel bearings? cassette body? pedals? well greased chain?