bowlofsalad
100 kW
Hello,
Sorry if this is posted in the wrong place.
I've been shopping around for various kits. http://www.e-bikekit.com/ebike-kits/electric-bike-motor I came across this page claiming that the geared hub is 15%-25% more efficient than direct drive. I understand that this could be marketing, so I thought I'd ask here. Is geared more efficient? 15-25% seems pretty crazy. Some people say regenerative braking is a waste of time, some folks say they gain 5-10%, some less, some a bit more with regenerative braking. While I don't know about all that, geared sounds like it steps well ahead of regenerative braking.
The only real downside (in my opinion) is the noise, but it seems like some decent lubrication would fix that nicely, I don't know for sure though. I did come across a thread saying they used automotive transmission fluid in their geared hub and it cut the noise dramatically. Some might say a lower top speed is a serious thing to avoid, but I really don't wish to go much if any beyond 20 mph, besides, the difference in speed isn't much. I prefer the idea of range when it comes to an ebike, and 20mph is plenty fast.
Sorry if this is posted in the wrong place.
I've been shopping around for various kits. http://www.e-bikekit.com/ebike-kits/electric-bike-motor I came across this page claiming that the geared hub is 15%-25% more efficient than direct drive. I understand that this could be marketing, so I thought I'd ask here. Is geared more efficient? 15-25% seems pretty crazy. Some people say regenerative braking is a waste of time, some folks say they gain 5-10%, some less, some a bit more with regenerative braking. While I don't know about all that, geared sounds like it steps well ahead of regenerative braking.
The only real downside (in my opinion) is the noise, but it seems like some decent lubrication would fix that nicely, I don't know for sure though. I did come across a thread saying they used automotive transmission fluid in their geared hub and it cut the noise dramatically. Some might say a lower top speed is a serious thing to avoid, but I really don't wish to go much if any beyond 20 mph, besides, the difference in speed isn't much. I prefer the idea of range when it comes to an ebike, and 20mph is plenty fast.