4.10/3.50-6 foam-filled solid flat-free mobility tire with a knobby tread pattern fits many mobility scooters and power chairs. This latex-free, non-marking gray rubber mobility tire is manufactured by Primo Power or Cheng Shin. Use as a replacement for your original equipment solid tire or replace your old pneumatic tire! Pneumatic air-filled tires can typically be replaced with foam-filled flat-free tires of the same size very easily. ![]() | |