M
hook me up, looking at gearing and a 18/38 - 19/40 - 20/42 all produce a ratio close to 2.11 so what is the difference??? 05 vector, gt2560 rear mount turbo, 10-15 lbs boost, cat roller secondary 55/53 helix, 162x 2.25, 2200ft-6500ft trail,boondocking,occasionally mtn climbing. Not hooked on the ratio just for comparison. thanxs in advance:beer;