ATHENA

Piston Kit - 66.34 mm - YZ250/X

0910-0641

Regular price $173.95

Quantity

-+

DESCRIPTION

Years	Make	Model
1999 - 2023	Yamaha	YZ 250
2016 - 2022	Yamaha	YZ 250 X

Two-stroke pistons are made from 4032 silicium

Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons

Both include 3% copper in materials for better heat resistance

All pistons are forged using a precision heat-treatment process that allows for production tolerances of just .005mm

Forged piston tooling allows for the lightest available product

Kit includes antiwear coated piston, rings, pin and circlips

Bore Size: 66.34 mm

Compression Ratio: Stock

Product Name: Piston Kit

Units: Kit

Engine Type: 2-Stroke

Displacement: 249 cc

Type: A

Piston Head Shape: Domed

Piston Material: 4032 Aluminum Alloy

Riding Style: Off-Road

Weight: 0.69

Height: 3.38

Length: 4.25

Width: 3.47