This Sealey Motorcycle Rear Wheel Chock features an adjustable pivoting wheel guide that secures the rear wheel within the chock. It offers four adjustable depths suitable for different wheel diameters. The frame bolts to the floor, stabilizing motorcycles without the need for side or center-stands. It is suitable for wheels with tyre widths between 130-180mm and diameters ranging from 14"-21" (355-535mm).