I couldn t find pics but the store you can buy them from.
I PMed u the shop
I was 100% you are wrong I just would like to know what you will show me! Nothing...
I exactly know Cross piston, and it's absolutly clear that you don't. You've heared that somebody saw a cross piston somwhere that was shorter.. maybe..
The Cross piston (31 8180) was created for the Malossi Cross trophy kits. Malossi had one kit for Minarelli (31 9185) and one kit for Piaggio engines (31 9174). These kits used 85 mm conrod. To keep the original cylinder height they just offseted the wristpin by 5 mm (up to the top). These kits had different port timings.
So once again. The Malossi Cross piston has quite the same height as the Speed Piston the difference is the wrist pin distance from the top. The cut out is straight on the Cross piston.