PISTON KIT 99-18 YZ250 66.40 B, WOSSNER 8216DB YAMAHA MX, 2 RING PISTON

Wossner High-Performance Piston Kit

Enhance the performance and reliability of your motorcycle with this Wossner piston kit. Engineered for demanding applications, this kit features a forged 2-ring piston designed for exceptional strength and thermal efficiency. Precision-made in Germany, Wossner pistons are built to withstand the rigors of high-performance two-stroke engines.

Key Features:

• Forged Construction: Provides maximum strength and durability for high-stress environments.
• Optimised Heat Transfer: Designed to efficiently transfer heat from the combustion chamber to the cylinder walls, improving thermal management.
• Elliptical Piston Shape: Ensures a uniform bearing surface, reducing wear and minimizing the risk of piston collapse under thermal stress.
• High-Quality Materials: Built to exacting standards for reliable performance and longevity.
• Precision Manufacturing: Made in Germany for superior quality and fitment.

Specifications:

• Bore Size: 66.41 mm
• Actual Piston Size: 66.36 mm
• Displacement (cm³): 249
• Stroke (mm): 54.10
• Clearance (mm): 0.06
• Compression Height (mm): 28.00
• Compression Ratio: 2-stroke (Wossner and OEM)

Included Components:

• Piston: Wossner PN# 8216DB (2-ring)
• Lock: PN# CW18
• Pin: PN# WP033
• Ring Set: PN# RSB6640 x 2
• Rod: PN# P2028