OTK (Original Tony Kart) brand wheels are the highest quality available.  For many years OTK’s MXC wheel has been recognized worldwide as the absolute best kart wheel there is.  Many manufacturers have tried to replicate the quality of the MXC and failed.  In fact, many teams will use the MXC instead of their own OEM wheels.  Now, OTK has introduced the MXL which is similar to the MXC but is an extremely low-volume wheel which means less pressure gain over the course of a race. The OTK MXJ is the original equipment wheel that comes standard on most OTK chassis.