Got the roller, thanks! I will be flying to Utah on Monday, and I will be driving a U-Haul truck back to Kansas. There are so many good deals on houses here, it shouldn't take long for me to finally have a garage of my own soon.
The drives have been working well for me. The 1.25 inch roller with 24V does 20-MPH on flat land, and the 1.0 inch roller on 36V climbs well.
The soft rubber tire with a round profile (good for cornering) noticeably wore a bit, but the roller had a small contact patch... and to be fair, I was really hammering the drive and breaking traction around 2000W. The flat-tread (wide contact patch) hard-rubber beach cruiser tire is showing no signs of wear.
The 40-grit sand-paper from a cloth-backed wet-dry belt is wearing well, I used the best two-sided carpet tape I could find, and I seal the trailing edge with a smear of JB-Weld epoxy (wrap with tape until dry). I still hope to buy/make some steel rollers in the future.
I added capacitors to the 3 ESCs, and I haven't fried one yet. The CC-ESC data-logged that I was drawing 60A peak on acceleration, and the smallest ESC I have is a 70A-continuous. The 63mm motors are perfect for this application, they only get warm under hard use, and cool off quickly during cruise. I am using the Exceed 295-kV motor the most. It seems to be a well-made unit, but...Its normally listed at around $145, and yet they have occasional sales for $45 (huh? why such a wide spread of price?).http://www.hobbypartz.com/mo1102brmo.html
I'm not satisfied with using a dial on the servo-tester as a throttle. I have one of Matts throttles, but I'm too busy to put it on right now, and I'm certain it will be great when I finally do.
I tried to find the least expensive options that would work well and be reliable under "college-student" duty. The final version has turned out to be more expensive than I hoped for, so...due to price, I doubt many of them will sell. For my summer project I want to use a de-spoked hub as a non-hub to drive a longtail cargo-bike (like John-in-CR). http://endless-sphere.com/forums/viewtopic.php?f=6&t=26932&start=15#p389622
I may make a frame using methods similar to the Tino Sana wooden bike. I'd make a shape with a big battery triangle and plenty of space just where I need the hub. Only about 14" longer tail than a normal bike.http://endless-sphere.com/forums/viewtopic.php?f=1&t=10697&start=0#p163929