Originally Posted by
dabac
I always size new chains to the bike, and NOT to the old chain. Reason being I rarely know if the old chain was sized just right or a tad off in either direction.
With that said, contact between pulley wheel and sprocket is usually fixed by adjusting the B-screw.
Points taken ... So what's the best way to size the chain to the bike? I have seen a few different calculations and the rule of thumb - put it on both big cogs, not through the derailleur + 2 half links, but not sure if that is the way to go.
I tried fiddling with the B screw but then it got dark and I wasn't quite sure of the correct procedure. Any pointers on B screw adjusting?
Thanks,
Larry