The 53 Series Wheel is a true 8" or 10". IMCA and Wissota approved and is the most widely used wheel in theses two associations. Rims are specially manufactured to avoid runout problems associated with using a torch or plasma cutter to trim rims to size. Inner and outer beadlock rings are CNC laser cut to insure consistent quality and accuracy on every wheel. AERO's Beadlock ring uses 16 grade 8, zinc-plated bolts and washers. Mud cover tabs are cut directly into the inner ring, eliminating the need for welding