Have a full size Birel AR28 kart for sale. Currently setup to use as a junior with a 30mm axle. Seat is a large I believe. Chassis is in great overall condition, showing very little scrapes on the frame, and no crash damage. Was used with a lo206 junior engine. I have lots of pics I can text or email. Its best to text or call me at 412-974-5695. I live about a half hour south of Pittsburgh, Pa.