Streeter Super Stands Uprights make out of the way storage and transport simple! Our design on the sprint chassis model accepts full width (hoop) and full size plastic rear bumpers and accommodates up to 50mm rear axles.We've also have a laser cut corner gusset that offers even more strength and clearance, as well as a newly designed rubber protection mat and plate to protect your axle. 3" poly casters make this stand mobile and convenient to store or transport your kart. Streeter's Upright Stands are simply the best designed and built, by a karting family in Hartford, WI. who takes pride in giving you the best. Don't jeopardize your equipment or your budget; when it comes to innovation and dedication- Streeter is the only choice. Uprights are available for sprint chassis, kid karts, and oval karts. Black powder coat finish are standard on all uprights. Quick bolt together assembly makes Streeter's Uprights easy to use, store and they ship to you via UPS Ground!