Wow , looks like a lot going on there .. is that a Micargi Puma ? I'm confused about you saying to use the seat post as the mount for the plates . The plates that accommodate the pillow bearings ? Are those pillow bearings encased with any type of mounting structure ?
I like the photos , but yet still trying to place this concept on my Micargi .... any drilling through the bottom frame tube ? Or as you said I'd it all mounted to the seat post? Now what type of bearings and tpi .. how many teeth per bearing , cause y3s my motorized is built to the hill , I don't need to ride 60mph , just a reliablexpansion set up .. on the left you have a large sprocket , I take it that's the real gearing for your application.. it looks as you have a huge dirt bike engine ? First and foremost I NEED TO GET A PEDAL CRANK SET AS WIDE AS POSSIBLE , my exhaust exhaust expansion chamber is certainly in the way on the right side .. any manufacturer or dealer on ebay that might have a extra wide crank set you could advise me too ?
Anyway thanks for the details . I'm studying your pillow bearing set up , I hope I can design and pull one off .. let me know anyone about the extra wide crank please and thank you all for the support