Re: the silver bike
I also use the shimano 3 speed hub, the Shimano 3 speed uses a rod direct to the hub to change gears but be careful of chain pulled or even the Shimano 7 speed which uses a cable to change gears with the interplanatary hubs. I tried to replace my Shimano with a 5 speed Sturmy Archer.. Most those chain or cable pulled hubs will not work with our motors! I wasted $150 and alot of time and ended up returning to the Shimano-Nexus 3 speed.