Stihl / Viking iMOW RMI 422 / 522 Offroad wheels

High grip / offroad wheels for the Stihl iMOW 422 / 522 series robot lawnmower. Heavy duty thread and wider than the original wheels. This has better significantly better traction than the original “upgraded” wheels from my testing. I recommend the weighted front wheels upgrade, and also some additional weight in front to avoid the front lifting and causing stoppage due to the increased traction, when pushing this mower to it's limits. 

Printed in PETG. 

The 632 series uses bigger wheels, so this will not work on that model.