inner tube selection 250-300x21(21MD) right metal central valve TR4

The MICHELIN inner tube remains to this day the best quality available on the market, it is thicker than other ranges, and is more resistant to the most extreme stresses. MICHELIN 21MD Airstop inner tube is suitable for tire size: 3.00-21 3.00-21 3.00/21 2.75-21 2.75x21 2.75-21 275x21 275-21 300-21 Non-exhaustive list , consult us in case of doubt