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