Building a Nirve 3 speed auto, springer with a jack shaft. Hope it works. Can adjust shift points with the control box. Paid 500.00 on amazon recived free shipping a savings of 75.00. putting v brakes on the bike 24x2.500 silver marage rims 24x3 black wall tires. 11 guage spokes? 12 for sure. have a set of worksman hubs coming for another build.