• Direct replacement of OEM Honda CRF450R flywheel*
• Built using stronger than OEM magnets to boost lighting coil output 30%** 
• Weighted heavier than OEM for smoother power delivery and increased tractibility. 
• Adds 5oz to '02-'03 bikes.  Adds 9oz to '04-on bikes.

*Requires flywheel puller tool
**Should only be used with CRF450R stators that have been rewound with a lighting coil.