This Trailer Rim's Diameter is 15" and the Rim Width is 6". This replacement trailer wheel features a(n) Aluminum finish and a Bolt Pattern of 6 on 5.5". This trailer wheel has a Center Hole Dia. that is 4.25" . This 15X6 6-Lug on 5.5" Aluminum Series 03 Trailer Wheel - 356655 has a Load Capacity of 2830lbs and a Wheel Offset of 0. The wheel's Center Cap Size is 4.25" and it Fits Tire Sizes ST205/75D15 | ST205/75R15 | ST215/75D15 | ST215/75R15 | ST225/75D15 | ST225/75R15. RecStuff.com is your source for new, brand name trailer parts that are dependable and long lasting.