All Malossi cylinders - both cast-iron and aluminum - are selected by size.

The range goes from size 0 (smallest piston) to size D (biggest piston). Every size features an increase of 0.01 mm.

When ordering a piston, please carefully specify the requested size marking as follows:

Example

• 34 3448          corresponds to size 0
• 34 3448.A0     corresponds to size A
• 34 3448.B0     corresponds to size B
• 34 3448.C0     corresponds to size C
• 34 3448.D0     corresponds to size D

Only cast-iron cylinders are also available in oversize as follows:

• 34 3448.40     corresponds to an increase of 0.4 mm
• 34 3448.80     corresponds to an increase of 0.8 mm

For pistons produced in the past, 0.2 mm and 0.6 mm oversizes are also available (ex. 34 3448.20 - 34 4375.60). 

All Malossi cylinders are selected and indicate the selection, week and year of control.

All Malossi pistons indicate the selection letter or number.

The piston should be inserted into the cylinder with the arrow pointing toward the exhaust.