Hub Drive Rolling Resistance
Hi Guys
I'm posting from Western Australia and looking for some advice on my new Front Hub drive. It’s a 400W brush less, gearless Chinese model (don’t know the brand). I've mounted the drive on the front forks with the bike upside down. In this situation, the instructions (in poor pronunciation) say that it should spin freely with some slight resistance. I'm not sure what this 'slight' resistance is, it seems to be very tight, moving 1/3 of a turn max when spinning by hand. It feels like it is a kind of staggered resistance (tight then loose then tight again...). It makes no difference if the wheel nuts are tight or loose. Funnily it spun fairly freely when I first took it out of the box. Any suggestions? Maybe I've got a dud product Cheers: |
If that hub is anything like the Bionx, spinning the wheel should get you a few complete revolutions, about 10 or so, with one single hand powered thrust.
Are you spining the wheel with the power on? |
Sounds like cogging torque. Power it up and see if the no load speed seems ok, and then give it a test ride.
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Originally Posted by Bluepup
Hi Guys
I'm posting from Western Australia and looking for some advice on my new Front Hub drive. It’s a 400W brush less, gearless Chinese model (don’t know the brand). I've mounted the drive on the front forks with the bike upside down. In this situation, the instructions (in poor pronunciation) say that it should spin freely with some slight resistance. I'm not sure what this 'slight' resistance is, it seems to be very tight, moving 1/3 of a turn max when spinning by hand. It feels like it is a kind of staggered resistance (tight then loose then tight again...). It makes no difference if the wheel nuts are tight or loose. Funnily it spun fairly freely when I first took it out of the box. Any suggestions? Maybe I've got a dud product Cheers: |
Thanks guys, I'l power it up tonight and see how she goes and I'll feed back. Happy Ebiking
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