---

APPLICATION: HONDA CRF 450 R 13-16

PROFILE CHARACTERISTICS:

RACING PROFILE for top end MOTOCROSS applications.

This profile provides great increase in mid and upper end still maintaining a great torque at mid and low end.

It is by far the best all terrain motocross profile, due to its smooth balance power delivery at all RPM.

Requires Exhaust System, High Compression Piston, and Performance Valve Spring Kit. Check ALL clearances!

Can work with OEM lifters, but larger diameter lifters are advised to provide maximum durability.

Web Cams item code: 57-982

Profile: 208 / 812

INTAKE EXHAUST

Valve Lash (Inch): .006" .009"- .0011”

Valve Lift (Inch): 0.408 0.331

Valve Lift (mm): 10.36 8.41

Advertised Duration: 282° 279°

Duration @ 0.050": 258° 243°

Lobe Center: 108° 104°

OPENING: 21° before TDC 45.5° before BDC

CLOSING: 57° after BDC 17.5° after TDC