Help! Tilting trike - getting it going again (newbie questions)

[vfr400]

There's very limited choice now unless you can find something on Aliexpress. previously, I'd have advised the Q128H from Bmsbattery or the 500w BPM, but all I can find from the regular suppliers is the 350w BPM. 201 rpm version will give more torque, but will max out at around 12 mph. 328 rpm version will max out at about 19 mph.

BPM2 36V350W Front Driving E-Bike Motor Wheel RPM 201

Bafang BPM 36V350W Front Driving Hub Motor E-Bike Wheel. You can select S09P, S12P or S12S controller for this motor.

bmsbattery.com

S12S controller and LCD3. You should get a speed sensor too in case the motor doesn't have one. You have to turn down the current in the settings. Default is 30 amps. Set parameter C5 to 05 or 06 to get 22 or 24 amps. It's a fairly large controller.

S12S 500Watts Torque Simulation Sine Wave Controller

S12S 500Watts Torque Simulation Sine Wave Controller for 36Volts and 48Volts battery pack E-Bike System

bmsbattery.com

 

[beanisboy]

Thanks - but what is a speed sensor?

 

[vfr400]

Thanks - but what is a speed sensor?

It's a magnet that goes on the wheel and a sensor that goes on the fork to detect how fast the wheel is turning. It's like those cycle computer things if you've ever had one. Without one, the LCD won't display the speed properly.

 

[beanisboy]

ah yes, cheers, know what you mean

 

[Nealh]

If about 12mph is good for the user then the AKM100 is available in 201rpm.

With rim.

AKM-100H 36V350W EBike Front /Rear Driving Hub Motor+16/20/26inch/27.5inch/28inch wheel rim [AKM-36V350W Front motor 26/700cc] - $97.65 : Zen Cart!, The Art of E-commerce

Zen Cart! AKM-100H 36V350W EBike Front /Rear Driving Hub Motor+16/20/26inch/27.5inch/28inch wheel rim [AKM-36V350W Front motor 26/700cc] - ★★★★★ AKM-100H 36V350W EBike Front/Rear Driving Hub Motor 36holes with 20/26inch/700CC wheel rim Specification: 1. Voltage: 36V 350W 2. Brake type...

www.topbikekit.com

With out.

AKM-100H 36V350W 36Holes Front Driving Hub Motor [AKM-100H Front Motor 36H] - $81.90 : Zen Cart!, The Art of E-commerce

Zen Cart! AKM-100H 36V350W 36Holes Front Driving Hub Motor [AKM-100H Front Motor 36H] - ★★★★★ AKM-100H 36V350W EBike Front Driving Hub Motor Specification: 1. Voltage: 36V. 2. Brake type: V-brake, rim brake and disc brake are compatible 3. Connector: 9Pins Motor Cable Plug 4. A speed sensor...

www.topbikekit.com

Page Not Found - Aliexpress.com

www.aliexpress.com

 

[beanisboy]

12mph seems pretty slow, how come it can't go faster?

 

[Nealh]

201 rpm is the copper winding speed so in 20" wheel it equates to approx. 12mph, the lower the winding speed the more efficient the hub is at climbing.
A 250 rpm hub would be about 15mph.
A 328rpm as VFR says is about 19 mph,
Though these aren't hill climbing speeds but flat terrain obtainable assist speeds.

For 20" wheel 1mph = approx. 16.8 rpm.

 

[Nealh]

The same hub 201rpm in a larger wheel has a greater rotation speed so can obtain more speed.
In a 26 wheel approx. 1mph = 12.9 rpm.
700c/28" wheel approx. 1mph = 12.2rpm.