@erikorjehag The pulley is from TB and has one flange removed since the wheel pulley already has an inner flange.
The steel mount is something I was forced to make because all my other mounts (TB all versions, and psycho) of 6mm thick aluminum kept snapping after short periods of time. Not sure if they are too thin or maybe aluminum is too flexible, or maybe this gear ratio caused too much stress on them. If anyone wants to try them I had a few extras made.
I’ve been running this drive train setup on dual diagonal for almost a year now.
97mm wheels on 7s a123, 245kv 20t/36t ratio
Regarding the speed, torque and efficiency of this setup:
comes to 38mph max
its very fast!!
it doesn’t like to go slow…difficult to maintain walking speed with this gearing.
For my weight (150 lbs) i need a dual motor to make it ride-able. it has no torque with just one motor. it constantly cogs and takes forever to get to a usable speed to stop cogging.
For @michaeld33 luckly hes like a stick figure so one motor is good enough lol
Not the most efficient gearing. Especially with just one motor the it pulls crazy amps and gets very hot. you will need a very powerful battery capable of high current with thick wires everywhere.
With 2 motors it is a lot better. Basically no cogging unless I floor the throttle from a standstill. and even then the wheels usually just start skidding and burning the pavement lol. The system runs warm most of the time. but after riding fast and hard the sk3 6364 (which is actually closer to a 50mm motor) get too hot to touch and i can fry an egg on the outside area of the enclosure where the ESC is located inside. I am using 6s hobbyking car ESC with the fan on it and its been holding up very nicely. I would never recommend using the VESC here it would melt in a second
I just recently switched to better motors and they are actual 63mm. They barely get warm even after hard acceleration.
The ideal setup here for mono-drive is probably 15t/36t but me and @michaeld33 did this kinda spontaneously one night and were limited to the parts we had on hand. My 15t pulleys were only 9mm and I didnt have anymore 9mm belts so had to settle for 20t 15mm pulley. but he got lucky cuz hes light