For sure it will work as a mid drive.
You said 4000rpm, well that will have to be decreased a lot, by a factor of 10 or so.
You will have to add a gear reduction. How many teeth does the motor gear have?
Lets say its like 14T, you will have to add two stages. 14T to 72T = 5.24:1 which will get it down to 763rpm. But you still need more reduction. 26" wheel 328rpm is 41kph. Which you need to half. 14T to 72T-14T to 28T = 381rpm.
How will you mount it?
- Should be easy. I just converted my hub motor to a mid drive. I just had to triple check that everything was level, that the gear on the motor lined up. Chain line was good. Make an adapter for the disc mount on the motor to convert it to a fixed gear, then spin the motor in the right direction. Just view my most recent posts, "Weekend Project". Sure its hillbilly style but I wanted the silence that a direct drive motor has, rather then the loud geared Cyclone motor I already have. I have been riding it today and it rides good. A few fixes need to be done but its a good cruiser.
Are you going to use the Cyclone crank freewheel, bb and crankset?
- If you are keeping your rig, I'd go for the heavy duty freewheel. Then figure out your gearing ratio's.
viewtopic.php?f=2&t=89877&p=1386574&hil ... g#p1333440
You simply put in the motor parameters, and then set your wheel diameter to include the effective gearing. So if your motor has a 10:1 reduction to the crankset, and then your chain goes from say 42T on the front to 16T on the rear, spinning a 24" diameter wheel, you would put in for your wheel diameter:
24" * 1/10 * 42/16 = 6.3"
To simulate a different gearing you just change your wheel size accordingly.
alix47 wrote: ↑
Jul 11, 2018 1:18 pm
I want to know if this motor will work as a mid drive it's a 48v 2000w electric scooter/ go kart
motor weight about 3 kg 4000rpm that's all i know about it. I added a pic thanks in advance