05-26-2020, 05:59 PM
Brad, will your mount be anchored to the axle (i.e., swing mount)?
I'm a big fan of swing mounts, primarily because as the axle flexes, the motor moves with it.
Compare that with a "worst case" setup having the motor positioned midway between the axle bearings, hard-mounted to the frame. Picture somebody other than Steve Miller in the seat... hit a bump, the axle flexes like a "smile" and the chain tension momentarily goes to infinity, just before the crank checks out...
Back to your question. As long as the mount is anchored to the axle, other than the possibility of running out of chain adjustment range if you only have fore-aft slots, I don't think it matters where the PTO is relative to the axle.
I'm a big fan of swing mounts, primarily because as the axle flexes, the motor moves with it.
Compare that with a "worst case" setup having the motor positioned midway between the axle bearings, hard-mounted to the frame. Picture somebody other than Steve Miller in the seat... hit a bump, the axle flexes like a "smile" and the chain tension momentarily goes to infinity, just before the crank checks out...
Back to your question. As long as the mount is anchored to the axle, other than the possibility of running out of chain adjustment range if you only have fore-aft slots, I don't think it matters where the PTO is relative to the axle.