A little hillclimb challenge between my newly rebuilt CR500AF and my 2020 CRF450R Works Edition.

Both bikes running on pump gas, the 500 definitely had an advantage with a new Dunlop MX14 tire over the 450’s used MX tire.

500: Wiseco 89.5 forged Piston, Pro Circuit Works Pipe, MSV High Flow Exhaust Manifold, MSV Mondo Ignition Coil, Dunlop MX14 rear tire.

‘20 450 Works Edition: stock with around 45 hours, used Tusk EMX45 rear tire.

‘06 450: stock with far too many hours.

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