Friday, August 19, 2011

THE BATTERY TRAY(s)



Here is the rather "busy" battery tray. I'm planning 6-12V, 20lb. GBS Lithium batts. that come in a kit with a 72V charger and BMS system (which I've read has given some trouble, we'll see). This presents a good example of waste in the structural design when a vehicle is converted from a "purpose built" platform. How nice it would be to start from the ground up designing around the components intended for the bike! (Waa-waa, I know)

Saturday, August 6, 2011

AND - THE "GO" STICK



The throttle pot is a bit hard to see as I positioned it backwards in the front web to be close to where I want the controller.

MOTOR MOUNTED



Here's the motor mounted and chained up to the sprockets. 12T to 72T for a 6:1 ratio. The motor reportedly gives 50 rpm/volt for around 3600 rpm which should yield 43 mph with my tire size. I want closer to 60 so plan to increase front sprocket a couple teeth at a time and see what happens to acceleration as I approach it.