rich67
31-03-2010, 07:04 PM
What size 64dp spur will I need on a TC4 runing a 19t motor, as I have 64dp pinions from 21t to 33t but only a couple of 48dp pinions and I figured it cheaper to get a spur rather than a set of pinions. Also does the gear ratio formula work the same for 64 and 48? Thanks.