Roborock S5 S6 Internal Error 105, 117 Wheel Replacement, ODO error, wheel short circuit. Wheel removal for S7 onwards is apparently not so easy.

For spare wheels (please check carefully your model)
https://s.click.aliexpress.com/e/_DC6...
https://s.click.aliexpress.com/e/_DBE...
https://s.click.aliexpress.com/e/_DET...