Hey, thanks for the lengthy response on my post about a potential broken connection on the q128c.
I'm eyeing up a new project but this time want to go for a single speed conversion. Do you know much about the q128h? I've really enjoyed the smooth and quietness of the 'c' so would like to stick with the q series.
A few questions for you (I hope you don't mind):
- Is the Q128H the correct motor for a single speed?
- Its a 800watt rated motor vs the 500w of the 'c', I currently have a 20a controller from PSW power, do you think a 12s from BMS Battery would also be suitable due to the extra it could output? I have a decent battery that can supply 30a continuous so 25a of the 12s shouldn't be an issue.
Thanks in advance, Craig.
There are single speed gears(called "fixies") available, but I have never looked at them closely because the smallest tooth count is a useless 16 T. You can do what I'm currently doing. My shift cable went bad here in a sm. beach town in Mex and I simply leave the chain on the smallest gear. You can remove the shifter/cable and and adjust the derailleur stop screws to make sure the wheel is centered on the gear. Of course, you want the cassette to have an 11T sm. gear. There are cassettes that have a replacement sm gear available for when it wears out, but they are expensive. I simply buy a cheap 11T-25T cassette and replace the whole thing. It's not the "cleanest" look, but it's the only way I know how to do it.
Motor ratings are only guides to what they can handle. it's the controller and pack that dicate the system power and going from a "C" to an "H" will not increase that.
If you follow my single speed advice and can fix the cable on the motor you have now, you do not need another motor. Take the money saved and buy quality flat guard tires.
Be advised, The "H" takes a free wheel, not a cassette and you will have to buy an 11T-??T free wheel from DNP Enoch. They are pricey at $40 to $50.
'03 Rocky Mountain Edge 2WD 260 Q100H frt and Ezee V1 rear 2 Elifebike 20A & 25A 9-FET controllers 12S/20Ah Multistar Lipo rear 5Ah Turnigy frt Luna Cyclops Extra lite Alex 24DM rims, Crazy Bobs run ghetto tubeless. 25 mph. Mean Well HLG-320H-54A
'07 GT Idive 4 4.0, Q100C 201 14S LiPoly elifebike 9-FET 20A controller. 23 MPH.