
Original: $170.00
-65%$170.00
$59.50The Story
This Wossner forged piston kit with a 56mm bore (55.94mm) is designed for the 1984 Yamaha YZ125. Manufactured in Germany, it delivers high durability and thermal efficiency. The piston features an elliptical design that ensures a uniform bearing surface during expansion, reducing stress and helping prevent piston collapse under load.
Features
-
Forged piston construction for enhanced strength
-
Engineered for efficient heat transfer to the cylinder walls
-
Elliptical profile supports even expansion and load distribution
-
Made in Germany
Specifications
-
Bore size: 56mm (55.94mm)
-
Display volume: 123 cm³
-
Stroke: 50.00 mm
-
Clearance: 0.06 mm
-
Compression height: 30.80 mm
-
Theoretical weight: Not specified
-
Compression ratio: 2-stroke (Wossner and OEM)
Cross-Reference OEM Part Numbers
-
Piston: 8120DA
-
Lock: CW16
-
Pin: WP036
-
Ring Set: RSB5600
Vehicle Fitments
-
Yamaha YZ125 1984

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
This Wossner forged piston kit with a 56mm bore (55.94mm) is designed for the 1984 Yamaha YZ125. Manufactured in Germany, it delivers high durability and thermal efficiency. The piston features an elliptical design that ensures a uniform bearing surface during expansion, reducing stress and helping prevent piston collapse under load.
Features
-
Forged piston construction for enhanced strength
-
Engineered for efficient heat transfer to the cylinder walls
-
Elliptical profile supports even expansion and load distribution
-
Made in Germany
Specifications
-
Bore size: 56mm (55.94mm)
-
Display volume: 123 cm³
-
Stroke: 50.00 mm
-
Clearance: 0.06 mm
-
Compression height: 30.80 mm
-
Theoretical weight: Not specified
-
Compression ratio: 2-stroke (Wossner and OEM)
Cross-Reference OEM Part Numbers
-
Piston: 8120DA
-
Lock: CW16
-
Pin: WP036
-
Ring Set: RSB5600
Vehicle Fitments
-
Yamaha YZ125 1984




















