Trailair was first to the market with air ride technology for fifth-wheel RVs and still leads the way with innovative fifth-wheel pin box technology. The new Lippert Components L05 Flex Air Pin Box combines time-tested Trailair air ride technology with a Rota-Flex pivoting head to significantly reduce fore to aft movement and vertical tug-of-war between a fifth-wheel RV and tow vehicle. This Lippert pin box utilizes an air bag to absorb road shock and vibrations and a rubberized compound to soften a jarring motion. An oil shock absorber on this Air Ride pin box handles rebound action and dampens kickback and control chucking.

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