I feel that my first gear ratio is a little high because I need too much throttle and clutch slip to get away. I bought the '50 Rapide in last November from Christian Patzke in Hamburg. When I recently attempted to email Mr Patzke I learned that he has recently died (26/06/2013). Some loose gears were included in the spare parts.
Other than taking the cluster out and measuring, is their a way I can determine the ratios fitted for 1st, 2nd, 3rd and 4th. Rear wheel is 19" and the larger 48T sprocket is in use. It also carries a 46T sprocket on the left side. I have tried to measure the gearbox sprocket but find it too difficult.