I replaced the front brakes with an Avid BB7 disc brake. I mounted the Grin Technologies Cycle Analyst and ran the wires back to the mount the shunt before the motor/controller. I stuffed the Turnigy Multistar battery into the Topeak MTX bag. Ran the power to the connector on the CA shunt and powered everything up. It all went together like a charm. I was able to take it for a 10 mile ride and hit a top speed of 30MPH! The bike felt great!