77T pulley for Trampa Hypa wheels

This is a 77 teeth pulley, I designed it for use with Trampa Hypa 6-spoke wheels. I use it with 15T pulleys and 12S lipos to have a loads of torque and still more than enough speed.

Use 55mm M4 screws if you use the spacer ; I'm not sure it's useful. Otherwise 50mm may be enough.

Use this calculator to estimate the belt length you need depending on the distance between pulley and wheel: https://www.bbman.com/belt-length-calculator/