[asid61]

Is that 32.6lbs with all six cims?
Very nice, however, I doubt the 98% efficiency number. Spur gears have a maximum practical efficiency around 99% for a single reduction.. how was this tested?
Anyway, super nice drivetrain. Gearbox in tube should be really interesting, and I love how you can remove the siderails if needed. That mitigates part of the problem with gearbox-in-tube.