ENGINE

The 450 cc engine is the ultimate powerhouse when it comes to KTM’s competitive motocross range. Its compact, lightweight design features a single overhead camshaft cylinder head, fueled by the latest electronic injection system. This enables the impressive 63hp to be distributed extremely efficiently throughout the rev range. Even with its super-beneficial electric starter this model is still the lightest 450 cc engine on the MX market. For 2021, the proven KTM 450 SX-F engine features further developments to improve reliability.