This wheel has a deeper drop center for easier tire mounting and dismounting. All center discs are made from high grade HSLA steel for strength and durability. Aero 51 Series Spun Wheel - Black - 15 x 8 - Wide 5 - 4.5 Back Spacing - 14 lbs. 51-180545 at low everyday prices. Our products are assured for high quality and standard. Our products are designed with the up to date designs and creativity. We always work towards to fulfill the requirements from Aero Race Wheel including Aero Race Wheel 51 Series 15 x 8 - Wide 5.Specifications Finish: Black Size: 15 x 8 in. Wide: 5 in. Weight: 14 lbs - SKU: MTRST86192