Jolle wrote: ↑08 Nov 2020, 10:42
With a reduction gear you will out more torque on the gears. If you look at different motorbikes with or without this reduction, the ones without, are a bit clunky but there is considerable less wear.
all motorbikes have some reduction gear
ie all shaft drivers since the late 1960s have a reduction stage between the crankshaft/clutch and the gearbox input shaft
this because the shaft line needed moving outwards to allow wider (than 1940s or 1950s) tyres ...
and because this enabled overall gearing to be varied (for different engine sizes) this way (not at 'CWP' final drive stage)
importantly making the CWP ratio common for eg 3 engine sizes saved money (needing 1 lot of CWP tooling not 3 lots)