Chonda 120 flywheel diameter 170mm and 40 mm thick
Chonda140 :-) :-) as above
Honda. 120. :-) :-) 160mm. 40mm
Honda. 140. :-) :-) 170mm. 35mm
Honda. 160. :-) :-) 170mm. 40mm
All these measurements are approx. All measurements where taken from the magnets and not including the fins. The honda gxv140 measures 35mm where the magnets are and then reduces down to 30mm.
The first three on the list are cast iron gxv140,gxv160 alloy. [Linked Image]