02-19-2017, 12:30 PM
(02-18-2017, 01:05 PM)ted johnson Wrote: Hi Ted, 1st reply post. Not sure I'm in the right spot. I've learned since the Helix gears were cut differently than the Dyna Drive (something I was always curious about back then and now) so the gears are not interchangeable for those who may want to know. I switched to a gearbox after blowing a clutch costing me a Championship AND getting hit by shrapnel. I went direct drive with a Dyna Drive gearbox. At the start, the crank gear broke on two different occasions. The problem ended by very lightly torquing down the lock nut and filing the key faces (top and sides) to reduce interference into the gear slot. Bullet-proof from then on.