Paul_G
10 kW
http://www.gizmag.com/velological-worlds-lightest-e-bike-drive/31976/
Tench said:Using the start up torque reaction to move the motor against the drive surface has been done before by ES member Kepler with his own friction drive. This seems far better than the Rubbee too!
I think the positioning is correct to increase pressure with torque. The smaller the better, both in diameter and perpendicular thickness of the driving 'wheel' with this type of system. That would have to be some highly engineered friction material for sure, though.bandaro said:I'm with kepler here, it would need to be on the other side of the tube, so the torque kicks it into the rim, and acts to increase the pressure and grip on the hub.
And with a measly little 92wh in the battery, I would hope that 1.6kg is battery inclusive. A 1.6kg drive excluding the battery wouldn't be worth it to only use a 92wh batt. And I can't see it a useable 600 watts, only at high speeds where it isn't really needed? such a small contact area would slip at low speeds surely?
mlt34 said:"The current iteration uses a 92-Wh lithium-polymer battery that provides up to around 12.4 miles (20 km) of e-assist. "
Let's stop sugar coating things and call it what it is:
"The current iteration uses a 92-Wh lithium-polymer battery that provides three and half miles of mediocre performance."