I've been asked a couple of times about the motorcycle wheels. Here's some additional information:
Specific rim and tire is posted here: diy tubeless tires for ebike anyone?
And a little more about the build process: Motorcycle rim?How's the performance?
My subjective evaluation about the setup: Since my A-Line unloaded is about as heavy as my folding bike fully loaded for touring - and since their pedal drive trains are similar, one main difference between them is the rotational mass of the wheels. There's a huge
PROs of the heavy wheels:
1) They're motorcycle wheels, DOT rated. I won't likely get near their top design speed.
2) Weighing hundreds of pounds less than their design load (sub 100 lb bicycle, sub 200 lb rider), I'd be surprised if I could puncture these tires even if I ride over a bunch of sharp objects. This is stark contrast to my folding bike, whose front tire has a bunch of nicks visible in the thin rubber from my recent 2-week adventure (I got 2 flats in the front on that trip, both while stopped. If I got a flat at speed, I'd be hurting).
3) Even with defective front suspension(I've had to ride with front sus locked out), the bike eats bumps for breakfast. By bumps I'm including 8" curbs, both going up and down.
CONs of the heavy wheels:
1) Price. I paid like $120 each for the rims, which is like 3 times the cost of good bike rims. I paid near $100 for the tires, also 2.5 to 3x the cost of bike stuff.
2) Pedaling - the huge rotational mass of the wheels makes pedal biking harder. Getting the A-Line up to speed requires a slow progression up the gears. Going up hill takes a lot of effort!
3) Stopping: Once up to speed there's a lot of kinetic energy in those wheels. I'm using top quality downhill bike brakes - had I gone for cheap brakes I think I'd be a wreck waiting to happen.
I also don't have long term tests, yet. The bike is at the shop at least another week waiting for the Lefty to be fixed under warranty. And considering I'm a long way off from getting electric assist installed, I won't be putting many miles on it any time soon. Keep an eye on the thread though, I plan to ride the bike down a mountain (road) & take a video of the ride over Labor Day weekend.
Welcome to the Sphere!