Signature Series 1WR Solo SeatDesigned and stunt tested by Rob Carpenter, this seat uses specially formulated foam that provides feedback and control as you steer the bike Offers a sporty look, dense foam for extra support and a curved rear scoop to hold the rider on whether they are sitting or standing Grippy cover and raised lumbar area locks the rider into the bike Fits both 3.3 and 4.5 gallon fuel tanks Made in the USA EU note: Fits both 12,49 L and 17,03 L fuel tanks.