| 138 "pissed on"
Piston diameter = 54 mm (54 x 55.5 = 127 cc)
Pin height = 12 mm
Pin diameter = 14 mm
Edge of crown to base of skirt = 37 mm
Dome height = 2 mm
Overall piston length = 37 mm
I call the 54 mm piston - the 138 "pissed-on" - because everyone who bought the 127 motors thinking they were 138's - got pissed on !!!! |