Countershaft spacer designed to prevent X-ring and O-ring chains from rubbing on expensive engine cases. Spacer is 1mm creating just enough space for larger chains. Designed for all CRF 250/450R bikes, or any bike with a 1” diameter countershaft that X-Ring and O-Ring chains rub on the case.

FEATURES

• Prevents engine case damage
• 1mm aluminum spacer
• For all Honda CRF 450R bikes, and others that have a 1" diameter countershaft