Grun
08-13-07, 11:20 AM
Is there a really tiny hub motor available that doesn't give too much power or speed, but just helps along a little bit? Or is BionX the only closest?
Electric Bikes - Tiniest Hub Motor
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geebee
08-13-07, 04:35 PM
2kg and small enough for people inspecting a bike to still miss. http://nano-motor.co.uk/
Either of the p2 motors here. http://www.users.bigpond.com/solarbbq/bikesale/bsale.htm
These small geared motors are actually very good assists and will make 20% hills easy with pedal assist, if you have any kind of slope stay away from direct drive low wattage hubs as they suck big time. :)
Either of the p2 motors here. http://www.users.bigpond.com/solarbbq/bikesale/bsale.htm
These small geared motors are actually very good assists and will make 20% hills easy with pedal assist, if you have any kind of slope stay away from direct drive low wattage hubs as they suck big time. :)
The7
08-13-07, 06:37 PM
2kg and small enough for people inspecting a bike to still miss. http://nano-motor.co.uk/
Either of the p2 motors here. http://www.users.bigpond.com/solarbbq/bikesale/bsale.htm
The nano-motor use roller type gear and the contruction does not seem robust.
P2 motors are better choice.
Either of the p2 motors here. http://www.users.bigpond.com/solarbbq/bikesale/bsale.htm
The nano-motor use roller type gear and the contruction does not seem robust.
P2 motors are better choice.
EvilV
08-14-07, 05:12 AM
The nano-motor use roller type gear and the contruction does not seem robust.
P2 motors are better choice.
I have read accounts of these motors losing drive altogether. There was a guy doing a ride on one to Brussels from Wales to make a point about saving the planet or some such crap (see link below). He averaged a speed of 10 mph with much pedaling from him and covered about 50 miles a day. His motor broke down within 500 miles leaving him without drive. Since I have pedaled my 16 inch folder well over 2200 miles at a 12 mph average speed without any misadventures, this does not seem like progress, especially since the kit cost about £500! The other day I pedalled my Taiwanese Brompton clone at an average of 17.4 mph for sixteen miles up and down a dual carriageway. I am an old git of 56 years old so the nano motor can't be up to much.
http://www.capandshare.org/willbikeblog1.html
P2 motors are better choice.
I have read accounts of these motors losing drive altogether. There was a guy doing a ride on one to Brussels from Wales to make a point about saving the planet or some such crap (see link below). He averaged a speed of 10 mph with much pedaling from him and covered about 50 miles a day. His motor broke down within 500 miles leaving him without drive. Since I have pedaled my 16 inch folder well over 2200 miles at a 12 mph average speed without any misadventures, this does not seem like progress, especially since the kit cost about £500! The other day I pedalled my Taiwanese Brompton clone at an average of 17.4 mph for sixteen miles up and down a dual carriageway. I am an old git of 56 years old so the nano motor can't be up to much.
http://www.capandshare.org/willbikeblog1.html
meb
08-14-07, 05:18 AM
Is there a really tiny hub motor available that doesn't give too much power or speed, but just helps along a little bit? Or is BionX the only closest?
SRAM SPARC (if its still being made).
2 100W motors internal to a P5 hub.
SRAM SPARC (if its still being made).
2 100W motors internal to a P5 hub.