Hemispherical Combustion Chamber

V-twin Series

Honda’s hemispherical combustion chamber was inspired by our proven racing technology.  It offers the highest V-Twin compression ratio on the market.

The power is transmitted through forged-steel connecting rods and a forged-steel crankshaft, supported by a full-pressure lubrication system.

• 9.3:1 compression ratio generates tremendous power.
• Excellent combustion efficiency.
• Allows a radial configuration to create high volumetric efficiency.
• Places the spark plug near the center of the chamber for optimal flame travel.

This means increased engine efficiency and more power to your application.