Optibike to try out NuVinci?

[Toorbough ULL-Zeveigh]

Don't have to read too much between the lines.
Also interesting that they claim they were told by a manufacturer (dual drive maybe?) an internal hub won't survive being driven by an electric motor.
EbikeMaui, safe, you listening?

http://groups.google.com/group/Tida...c1968bb948e/eff9c366e1108d4d#eff9c366e1108d4d


We have talked to a internal hub manufacturer and were told the high
power output of the Optibike (even the 400) would tear it to pieces in
no time. We did get a new, gearless rear hub in here a few months ago
but to tell you the truth we have not had the time to string it up
with spokes. And- it weighs in at ~10lbs. That is about 9 lbs of
additional unsprung mass in the rear wheel that, as you may know, is
not how we like to do things because of the sacrifice in handling.
But it may be an interesting trade off- who knows.

 

[NickF23]

Also interesting that they claim they were told by a manufacturer (dual drive maybe?) an internal hub won't survive being driven by an electric motor.

I've heard as much elsewhere. Apparently they have trouble when being ridden by offroad riders and people hauling cargo. I beleive that's why nexus brought out its 5 speed cargo model

 

[Lowell]

Also interesting that they claim they were told by a manufacturer (dual drive maybe?) an internal hub won't survive being driven by an electric motor.

I've heard as much elsewhere. Apparently they have trouble when being ridden by offroad riders and people hauling cargo. I beleive that's why nexus brought out its 5 speed cargo model

It's probably ok for little hula girls with an easy riding style, but a manufacturer has to have reliabilty with a 230lb rider under worst case conditions. I presume the 5spd model has larger gears?

 

[NickF23]

oh, it was a sram cargo not nexus. but apparently its one of the most durable. not sure about the gears.