Hi Elmo,
I'm just about to start fabrication on a Greyhound based, scratch project. Thanks for the motivation, I followed yours intently and learned a lot. I have most of the parts I need to start but need a little help with the Max torque clutch. How do I get one with a "low speed spring"? Lots of people sell them but I haven't seen that option. Seems important to me to keep engagement speed low to avoid overheating the clutch. (Big guy, heavy bike). Included a rough sketch, have since drawn to scale and made tubing patterns; yes that is rear suspension... I hope!