Wössner Pistons 8306DA Single Ring Forged Piston Kit for Yamaha - YZ65

The Wössner 8306DA is a premium forged piston kit designed specifically for 2018-2025 Yamaha YZ65 motorcycles. This German-engineered performance piston kit features a single-ring design optimized for two-stroke youth motocross applications.

Key Features:

• Precision forged from 4032 T6 aluminum alloy for superior strength and durability
• High-quality permanent molybdenum skirt coating reduces friction and piston rock
• CNC machined for optimal weight reduction while maintaining critical strength areas
• 43.45mm bore diameter (Size A) with graded sizing options available
• Tighter piston-to-bore clearance capability for improved performance and quieter operation
• Low thermal expansion characteristics for reliable performance under extreme conditions

Complete Kit Includes:

• Forged piston
• Piston ring (RSV4350 ring set)
• Wrist pin (gudgeon pin)
• Circlips (retaining clips)

Wössner pistons are manufactured by European specialists and represent championship-level quality for racing enthusiasts. The lightweight design reduces stress on wrist bearings and pins while maintaining structural integrity in high-stress areas like the crown and skirt wall cross-section.