ONBOARD: T.J. Koyen | 2015 Route 66 Sprint Series | Yamaha Pro | USAIR

[@davidhagglund6605]

Hi! I really liked your karting 101 series! Can you make a video about tire pressure and different rims? Difference between MXC, MXJ and maybe wet rims etc etc. Would be very helpful! Thanks :)

[@KorsasportKartingDevelopment]

Hoping to create more content like this in the future!