taco eater :
Chris L. from Portland, OR United States
Main differences between this and NU50, NX50 model is a few inches shorter front to back, made for the 10 inch wheel vs 14 inch on NU50. It uses a different drive belt, it's shorter and has fewer aftermarket options, and came with a smaller stock main jet. Some people have managed to squeeze a 14 inch wheel on there, after using a grinder and some spacers, just search Moped Army, it's all there somewhere.