Is your youngster ready for a shifter? The GPX MXR90 is the logical next step for young riders that have outgrown the FSE60. While we have designed the MXR90 for young riders, it can still handle parents too thanks to its wide footpegs, skid plate, and disc brakes. In fact, when Junior is not looking, parents can line up for the 10” Stock Class at the pit bike races!