2011 Honda CRF450R Engine Specifications

 2011 Honda CRF450R
 2011 Honda CRF450R
 2011 Honda CRF450R
2011 Honda CRF450R
2011 Honda CRF450R Engine Specifications:

Engine Type: 449cc liquid-cooled single-cylinder four-stroke
Bore and Stroke: 96mm x 62.1mm
Compression ratio: 12.0:1
Valve Train: Unicam, four-valve; 36mm intake, titanium; 30mm exhaust, steel
Induction: PGM-FI, 50mm throttle body
Ignition: Full transistor with electronic advance
Transmission: Close-ratio five-speed
Final Drive: #520 chain; 13T/48T