Clean, Low Miles On This Sportster 48! The all-new Forty-Eight is an urban brawler that drips attitude from every element; from the fat, balloon tires to the all-steel peanut tank to the solo seat. Custom touches define this bulldog of a bike. A slammed speedometer, under bar mounted mirrors and 26-inch seat height offer a low profile, while the peanut tank and big 16-inch wheels combine for a menacing look that could only come from Harley-Davidson.