Originally Posted by ocscully
Very slowly! I work on it in fits and starts and over the past 10-11 months not much at all. The wooden pieces and pulley you mention are the mock-up of the jackshaft and the primary reduction driven pulley. The set-up shown above uses a 23t driver on the clutch to a 88t driven on the jackshaft then a 20t driver on the jackshaft to a 96t driven on the rear wheel. The math says the max speed should be the middle 30's.
Great.. It will be a work of art for sure. Like a dentist make sure you brush your bikes teeth after welding in/installing these braces.