The file '12V Kids Motorcycle/Dirt Bike – Drive Gear 3D Printer Model' is (stl) file type, size is 70.6KB.
This thing is a part (drive gear) I modeled with the 51 tooth gear being scaled up 1% in attempt to avoid stripping the gear. The original gearbox has too much backlash allowing the gear to separate and destroy the teeth since it mates with a metal gear.
The 51tooth gear is now ~66.82mm in diameter (it was originally ~66.15)
UPDATE I Recommend using V2
I uploaded V2, this version has the main gear scaled up again 1% (~67.5mm) and the center hollow shaft thickness has been increased (the center shaft was a weak point on the first version)
It is designed to fit this 12v dirtbike powered wheel toy:
https://www.amazon.com/Aosom-Motorcycle-Electric-Battery-Powered-Off-Road/dp/B09DS3CDDH
Gear_V1_not_strong_enough.stl | 160.4KB | |
Gear_V2_stronger_so_far.stl | 160.4KB |