D
Deleted member 4366
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About 3 years ago, after a lot of success with the Q100 motors, I tried a Q128, which is bigger, so I thought it would give a lot more torque. It was a total disappointment. I don't know why, but it was gutless regardless of how much current I pumped through it.
The Q128H has been around for a while, but I never heard of anybody trying one, so, to satisfy my curiosity, I had to get one. To go with it, I got one of those 09 flat bottle batteries that includes a 20A sinewave controller and the rest of the kit. I lashed up the kit to an old Carera Kraken I had lying around, and was finally able to satisfy my curiosity. This is a 48v system and the motor is the 201 rpm version.
The previous one I had was quiet, but this one is very quiet and smooth - almost silent. Nobody will hear you coming. The Torque is impressive. . It had no trouble dragging me up our 14% test hill without pedalling. In fact, it could stilĺ get up at half throttle. It seems to be very happy giving high torque while going very slowly. It would therefore be very good for heavyweight people who want a lightweight bike and aren't too bothered about speed or maybe for towing a trailer. The throttle is very soft. It's dead easy to trickle along at 2 or 3 mph.
It comes with a label that says 800w on it. If you pealed it off, you wouldn't have any trouble convincing people that it's a 250w motor. It's much smaller than a Bafang BPM.
I'm not too sure what the top speed is yet. 201 rpm is 15 mph. I don't think that it's much faster than that, though if you want more speed, you could always use the 36v one at 48v. I haven't managed to get the PAS working yet, nor the speed display. I've got a feeling that there's a fault in the controller or display. I'll have a go at sorting it tomorrow. The last one of these kits I used worked perfectly straight out of the box. For that kit I used a 500w BPM motor. This one has the same torque, though the BPM had more speed, but was noisier.
I'll try and post some photos when I've finished it.
The Q128H has been around for a while, but I never heard of anybody trying one, so, to satisfy my curiosity, I had to get one. To go with it, I got one of those 09 flat bottle batteries that includes a 20A sinewave controller and the rest of the kit. I lashed up the kit to an old Carera Kraken I had lying around, and was finally able to satisfy my curiosity. This is a 48v system and the motor is the 201 rpm version.
The previous one I had was quiet, but this one is very quiet and smooth - almost silent. Nobody will hear you coming. The Torque is impressive. . It had no trouble dragging me up our 14% test hill without pedalling. In fact, it could stilĺ get up at half throttle. It seems to be very happy giving high torque while going very slowly. It would therefore be very good for heavyweight people who want a lightweight bike and aren't too bothered about speed or maybe for towing a trailer. The throttle is very soft. It's dead easy to trickle along at 2 or 3 mph.
It comes with a label that says 800w on it. If you pealed it off, you wouldn't have any trouble convincing people that it's a 250w motor. It's much smaller than a Bafang BPM.
I'm not too sure what the top speed is yet. 201 rpm is 15 mph. I don't think that it's much faster than that, though if you want more speed, you could always use the 36v one at 48v. I haven't managed to get the PAS working yet, nor the speed display. I've got a feeling that there's a fault in the controller or display. I'll have a go at sorting it tomorrow. The last one of these kits I used worked perfectly straight out of the box. For that kit I used a 500w BPM motor. This one has the same torque, though the BPM had more speed, but was noisier.
I'll try and post some photos when I've finished it.