Cylinder Athena Big Bore d=53mm 105cc Yamaha YZ 85 19-25

The standard cylinder kit Athena, specific for Yamaha YZ 85 19-21 105cc, includes a 53mm diameter nickel-plated cylinder, complete forged Piston, and gasket kit for installation.

This kit is the perfect alternative to the original replacement and can be installed without modifying the original crankcases. The high production quality standards and perfect sealing, thanks to the multilayer cylinder head gasket relief system, guarantee the same quality and performance as the original at an unbeatable price.

• Displacement: 105cc (cm3)
• Diameter: Ø53mm
• Stroke: 47.8mm
• Compression ratio: 14.8:1

Compatible with:

• Yamaha YZ 85 19-25

Spare parts:

• S4F05300002A/B/C Forged Piston (A: ø 52.95 / B: ø 52.96 / C: ø 52.97mm);
• P400485160076 Gasket kit.