Diarmuid wrote: ↑
Jun 21, 2018 1:10 am
I'm probably going to go to Rodriguez bikes and get a custom frame made.
If you're normal sized and you want a normalish bike, it would be much cheaper to buy a commercial chromoly frame and have a framebuilder install a joint in the seat stay for you.
I think the Rohloff plus mid drive (or NuVinci plus mid drive) is better option than Pinion with a hub motor. You get to shift the motor's power to optimize for torque or speed. You get to use a normal bike frame that can be reconfigured later if you want.
With Pinion, you can have lots of gears at the pedals, but only one ratio for the motor (so only one best speed range, and fixed wheel torque). On the plus side, with Pinion you don't have to accommodate motor torque within the gearbox's maximum capacity.
Rohloff is a couple of pounds lighter than Pinion.
With NuVinci, you don't have to worry about shifting under load, because the transmission is always fully engaged. That's a plus especially in an electric assist application. There can be no violent crashing shifts.