If you want that early style, even for a later Sportster, this is the tank for you right side petcock location and fuel capacity of 3.5 gallons featuring the Roadster style Front mount tab holes to rear mount tab holes measure 21-1/4" center to center Fuel opening is 4-1/2" from the front edge of the tank and 16" from the rear edge Replica Style Gas Cap 720-057 sold separately; NOTE: For an early retro look like on 1957-78 Sportsters, pair up with 710-038 Replica rear Fender Steel, for use with 18" wheels only.