H
hotsauce492003
Guest
The frame shape of the Sunbeam and Ace model from Hawk: http://www.hawkclassic.com/#
is on the right track= plenty space for engine so it sits low on the frame.
And space to place a 3 speed hub transmission just behind the engine and a Jackdrive with 3 sprockets. One is a freewheel conected via chain to the pedal's crank. The second is fixed and conects to the engine. The third one conects to the rear wheel sprocket(also fixed, for clutch start). All sprockets selected so that the right ratio is achieved at the rear wheel, with a max speed of 40mph, but with good pulling power and acceleration from the low geraring to start.
is on the right track= plenty space for engine so it sits low on the frame.
And space to place a 3 speed hub transmission just behind the engine and a Jackdrive with 3 sprockets. One is a freewheel conected via chain to the pedal's crank. The second is fixed and conects to the engine. The third one conects to the rear wheel sprocket(also fixed, for clutch start). All sprockets selected so that the right ratio is achieved at the rear wheel, with a max speed of 40mph, but with good pulling power and acceleration from the low geraring to start.