Dauntless wrote:Heavens, the threads on that around here. Have you searched NuVinci?
Solcar wrote:I've been looking for a small, light weight one other than a wheel hub type (pretty big, costly, a bit heavy?)
Hillhater wrote:There are several threads on multi ratio /CV friction drives if you keep searching, but one conclusion was that you really do not need a cv/multi ratio drive with electric power. Just 2-3 well chosen ratios works well for efficient power use.
... I suspect he is aware of NuVinchi...
John in CR wrote:I ran a Comet Torq-a-verter belt type CVT on a low powered emoto that worked ok, but they're pretty big and heavy. I remember someone running a variator from a scooter on an ebike and another on an emoped, and those are similar takes on the same theme. The trick is to tune them for a match with our lower rpm higher torque electric motors unless you're going to use a higher rpm RC motor which are closer in rpm to what the variator for gasser scooters want.
Dauntless wrote:Heavens, the threads on that around here. Have you searched NuVinci? I for one am all for them.
http://www.ebay.com/itm/49cc-X1-X2-Ninj ... 51&vxp=mtr
whatever wrote:can anyone point towards ebay cvt that you can use cable to adjust ratio?
the previous ebay link is the ratio controlled by cable? or some sort of auto adjust??
I'm wondering about the efficiency of these things to?
Solcar wrote:The set-up I would like to switch my ebike to would pretty much involve having a wide range of gearing to choose from, like the through-the-gears set-up I have now except it would be much lighter weight. I ride slowly, so low power with wide gearing does well for me (I take my time on back ways when feasible). I also hope it would be able to slow the bike down on a few dangerous hills around here without having to ride the brakes, and give good push up some steep hills. I think that most people don't need much if any variable gearing options because with a lot of power it doesn't seem to matter as much.
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