Mustang's "Super" comfortable solo sits the driver approximately 1.25" further back than the stock seat and is available with or without a fully adjustable and easily removable driver backrest. Pair with an 8.5" or 11" passenger seat, or a recessed 13.5" passenger seat for comfortable 2-up riding. Recessed passenger seats are required for use with the available built-in driver backrest, while regular passenger seats extend forward for additional rider back support on solos without the driver backrest. Choice of plain, chrome studs or black pearl-centered studs.