Nitro Mousse Rim Lock System, 21"

FEATURES

• High pressure rim lock and seal that secures the entire tire bead to the rim, completely eliminating the use of a conventional tube.
• Allows you to run a low tire pressure (as low as 10 psi), dramatically improving traction.
• The 100 psi inner bladder clamps the entire bead and side wall of the tire to the rim, providing full bead lock performance.
• Holds the tire firmly and makes the sidewalls stay upright and absorb the full impact, unlike bending and deflection you get with conventional tubes.