I bought a 56cm bareknuckle frame bike and I know that I need a threadless stem, I'm not too sure what size I should be looking for. Also what size should I be looking for in a seat post? 30mm or 44? Would the nitto njsp72 be compatible with my bike?
Univega Gran Premio, Custom MTB/SS/Commuter, Vintage Miele Fixie under construction
30mm or 44mm is the spacing of the rails on the saddle itself, some saddles (NJS?) will have a different spacing than everything else. Just ask your bike shop. If you have the saddle, but not the post, measure the saddle's rails.