So I got a '75 garelli eureka flex with a polini 70cc kit. Everything but the topend is stock and currently has an 11-42 gear ratio, which will pull up 90% of the hills around here. It came with a 9-42 ratio and would rip up anything. I just got done cracking the case and replacing the oil seals...enough said, anyway I was woundering what yall suggest my next step in upgrades should be. Exhaust, carb, different gearing? I would like to increase topend a bit more without losing much torque, cause I need it around here. I was thinking exhaust, bullet/boss/bi-turbo...
Thanks