Piston kit - pro RR250 05-07/15-19/EXC250 01-06 74.9

Forged piston: Manufactured from aerospace-grade aluminium alloy using closed-die forging, aligning the grain structure for high strength and durability.
Piston skirt coating: Most kits include a special dry or molybdenum disulphide coating on the skirts to reduce friction, prevent scoring and facilitate running-in.
Piston rings: High-quality rings designed to meet the specific thermal expansion and sealing requirements of the piston.
Pin: Precision-machined steel pin
Retaining rings: Safety clips to keep the pin in place



Specifications


Brand
WOSSNER


Supplier reference
8592DB


Engine capacity
250 cc


Piston diameter
74,96 mm


Rim material
Nitride coating, Steel, Cast iron


Piston material
Aluminium alloy, Forged


Piston size(s)
Standard size B


Model
Pro Series


Product name
Piston kit


Piston skirt coating
Molybdenum disulphide


Compression ratio
12,8:1


Engine type
4-stroke


Units
Kit