The Cylinder Works +2mm Big Bore Complete Cylinder Kit increases the displacement of Honda CRF150R and CRF150RB models to 159cc. This direct bolt-on kit requires no replating or additional machining, delivering OEM-like fitment and performance.

Features:

• Increases displacement to 159cc with a +2mm big bore cylinder.
• Nickel Silicon Carbide plated for enhanced durability and long life.
• Precisely honed for easy piston installation.
• Complete kit includes all components for a top-end rebuild.
• Compatible with Hot Rods #4175 crankshaft to achieve 166cc displacement.

Included Components:

• Cylinder
• Piston
• Rings
• Pin
• Clips
• Gasket set

Technical Specifications:

• Displacement: 159cc
• Bore size: 68.00mm
• Compression ratio: 11.7:1
• Size over standard: +2.00mm

Cross-Reference OEM Part Numbers:

• HONDA: 12100-KSE-670
• HONDA: 12100-KSE-671

Vehicle Fitments:

• Honda CRF150R: 2007–2009
• Honda CRF150RB: 2007–2009