Wiseco WB1071 Bottom End Gasket Kit for Honda CR250 1988-1991

The Wiseco WB1071 is a premium bottom end gasket kit engineered specifically for the 1988–1991 Honda CR250. Manufactured from high-quality materials designed to meet or exceed OEM standards, this kit provides reliable sealing across all critical mating surfaces in the lower end of your engine — making it the ideal foundation for a complete bottom end rebuild.

Key Features:

• OEM+ quality gaskets and seals — premium materials that exceed factory specifications for superior sealing and long-term durability
• Corrosion-resistant surface treatment — protects against corrosion and pitting during long-term use or storage, extending the life and strength of the assembly
• Compatible with Wiseco crankshafts and pistons — engineered in-house to ensure perfect fitment and compatibility with Wiseco powertrain components
• Comprehensive coverage — supplies all gaskets and seals needed for a complete bottom end rebuild under a single part number
• Case-hardened main bearing surfaces — hardened to 58–62 RC for maximum operational life and smooth performance at high RPM
• Shot-peened connecting rod — double-forged construction with oil slots, shot peening, and coated bronze thrust washers for reduced stress and improved longevity
• Bushed top-end rod bore — oil-retaining bushing eliminates wrist pin galling and extends pin life
• Caged needle roller bearings — precision-caged design supports the highest possible RPM operation
• High-quality crank pin bearings — manufactured from hot-rolled steel, case hardened to 58–62 RC for extended assembly life

The Wiseco WB1071 bottom end gasket kit is a must-have component for any serious engine rebuild. Whether you're restoring a vintage CR250 or refreshing a well-used race bike, this kit delivers the precision sealing and durability needed to get the job done right the first time.