MPI Stock Car Steering Wheel - 13" - Black Helmet Air System The Perimeter Seal system is

The Perimeter Seal system is the latest technology from Racing Optics which allows for a tighter seal to visor

Sold in pairs with mounting bolts

Combine both for the same effect as buying a larger sway bar

Quick Release Helmet Hardware: Unique single hand quick eject helmet attachment system

Seat back is double crossbroke for added strength and comfort

MPI Stock Car Steering Wheel - 13" - Black Helmet Air System The Perimeter Seal system isThe MP is the model that launched Max Papis Inc. It is the lightest stock car steel wheel on the market, comes in 4 different sizes (13,14, 15, 16), 2 different grip thickness (O and OE), and incorporates the MPI Safety u channel and double rivets technology. Safety is always on the forefront of all MPI products. The inner structure has been engineered to deform under elevated impacts, absorbing the load and reducing the effects on the drivers upper