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http://www.woaczh.com/show_content.php?id=3860
http://szxfmotor.en.alibaba.com/product/758303203-213690334/XOFO_350_500W_geared_Hub_Motor_with_cassette.html
I've seen these motors before when browsing Alibaba. They were at the Shanghai show, where I had a chance to talk with some of their guys. The motor is basically a clone of the Bafang CST. They told me that it was their own design and was better than the Bafang. They showed me some Powerpoint slides on a laptop, but I couldn't see much difference and the explanation was spoiled by their poor English. Anyway, the proof of the pudding is in the eating, so I ordered a sample.
I think I've got the highest power version but it's got no markings. The catalogue says >400w whatever that means. All I know is that it's nominally 36v and came with a 22 amp controller.
I want to use it for a special project (lets call it a stress test) before using it in a more conventional bike with its supplied controller and other bits, so I hooked it up to a KU123 30 amp controller with a 64v battery installed on my trusty Giant NRS, This is only for testing it. After I installed it in the bike, I spun the wheel and was surprised by how long it rotated. It's much more free-running than the Bafang.
No load speed is 34mph at 64v, so with a normal 36v battery, it'd be closer to 21mph, or about 19mph real speed.
On the road, acceleration was rapid to about 25mph. It reached 27mph in most circumstances, and 30mph in favourable ones. Hill-climbing was faster than my Bafang CST with the same controller but only 36v, although not the massive difference that the difference in voltages would suggest. it seemed to handle the power quite well without getting hot. I didn't measure the current, but the 30amp controller at 64v would have been processing close to 2kw. Even at that power, the motor was quieter than my Bafang CST. and it was also pretty smooth. I'll try it tomorrow at 36v to see how it compares directly with the Bafang CST. I'm expecting it to be a bit slower and less powerful, although more powerful than the 350w CST. So far, I like this motor.
http://szxfmotor.en.alibaba.com/product/758303203-213690334/XOFO_350_500W_geared_Hub_Motor_with_cassette.html
I've seen these motors before when browsing Alibaba. They were at the Shanghai show, where I had a chance to talk with some of their guys. The motor is basically a clone of the Bafang CST. They told me that it was their own design and was better than the Bafang. They showed me some Powerpoint slides on a laptop, but I couldn't see much difference and the explanation was spoiled by their poor English. Anyway, the proof of the pudding is in the eating, so I ordered a sample.
I think I've got the highest power version but it's got no markings. The catalogue says >400w whatever that means. All I know is that it's nominally 36v and came with a 22 amp controller.
I want to use it for a special project (lets call it a stress test) before using it in a more conventional bike with its supplied controller and other bits, so I hooked it up to a KU123 30 amp controller with a 64v battery installed on my trusty Giant NRS, This is only for testing it. After I installed it in the bike, I spun the wheel and was surprised by how long it rotated. It's much more free-running than the Bafang.
No load speed is 34mph at 64v, so with a normal 36v battery, it'd be closer to 21mph, or about 19mph real speed.
On the road, acceleration was rapid to about 25mph. It reached 27mph in most circumstances, and 30mph in favourable ones. Hill-climbing was faster than my Bafang CST with the same controller but only 36v, although not the massive difference that the difference in voltages would suggest. it seemed to handle the power quite well without getting hot. I didn't measure the current, but the 30amp controller at 64v would have been processing close to 2kw. Even at that power, the motor was quieter than my Bafang CST. and it was also pretty smooth. I'll try it tomorrow at 36v to see how it compares directly with the Bafang CST. I'm expecting it to be a bit slower and less powerful, although more powerful than the 350w CST. So far, I like this motor.
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