Installing the crank chain
The front crank on Tricycles that use a front hub motor drive do not utilize Electric drive on the axle or rear wheels. As such, the crank has a chain fitted between the crank gear and a single 3" sprocket on the drive axle. Our tricycle in this case has a 16 tooth 3" sprocket on the axle lined up with the main gear of the crank pedal assembly. It uses a 1/2" chain and a 3" 16 tooth sprocket again designed for 1/2" chains.A chain break is used to open the chain. The chain is then shortened such that it rounds the Chain gear and sprocket. We allow 1/2" slack in the chain and place a chain link for 1/2" chains to rejoin the ends. The chain for the axle to drive wheel is a 3/8's chain and has a 15 tooth 3" sprocket fitted to the outer end of the drive sprocket. This sprocket must line up with the selected gear at the rear wheel. There are 7 sprocket in the rear wheel cassette. Larger gears will drive the trike slower and smaller gears will drive faster. It is put on in a similar fashion to the previous chain but using a 3/8's chain link link. Last thing to do is place the chain guard in place to complete the installation.
The final hurrah! I have a ridable trike ready for conversion to a fully electric unit.