Most of the rock bouncer’s beadlocks bolt the inner and outer bead onto the wheel. Given the high speed and rough terrain the buggies encounter, they found that extra cushion was needed inside of the wheel. This added wheel barrier came in the form of Inner Air Locks (<a href="http://www.innerairlock.com" xmlns="http://www.w3.org/1999/xhtml">www.innerairlock.com</a>), which are filled to nearly 30 psi. The Inner Air Locks act as an internal beadlock as well as a bumpstop. This air shield gives the buggies that extra bit of cushion so they don’t break a wheel after a hard jump or impact.