Bought one of those in 1991 for my oldest son ( 8 at the time ). They are an 1 1/8" tube chassis, 15* front spindles ( says it on the spindle arm ) is a little hard to steer for a youngster at a Sprint track ( this is where you are using it right? ) because of the effort to turn the wheel. He will get used to it though. At the time it was one of the faster karts in this area, we raced Flathead then in Purple and Gold Plate. Try and get as much weight on the front end as you can which is hard to do for a youngster because they are so lite. If you can 46* works well. Margay should have all the parts you need hopefully.