Motorcycle/ATV rim clamp adapters fit all Major Tire machines except LT-3900B and LT-3490 models. They quickly and easily slip onto existing rim clamps and have plastic protection at the contact points of the rim to avoid any scratching of the rim. They can handle up to a 32" rim outside clamping with an LT-3950 or LT-3980 models with 28" table. Up to 30" with LT-3710 or LT-3900A with 26" table. Jaw tips can be mounted 180 degrees in adapter to make table clamping size larger.