Guide, C630, EX STD,

Honda®, CRF250R, 2010-2015

HONDA
CRF250R 10-15,

Exhuast - G (Std. 0.3965 Inc.) C630 Bronze 30-31480
Dimensions:
A. 0.820" (20.84mm)
B. 0.820" (20.84mm)
C. 0.650" (16.52mm)
D. 0.770" (19.57mm)
E. 0.394" (10.01mm)
F. 0.1760" (4.47mm)
G. 0.3965" (10.07mm)

We choose to use the copper based C63000 nickel-aluminum bronze as a material to make our bronze valve guides because of its ideal characteristics for the application. The 5% nickel content provides superior resistance to wear, and the approximately 80 percent copper content delivers outstanding heat conductivity. KPMI® guide profiles are designed to have minimal effect on the airstream while maintaining critical cross sectional thickness in high temperature areas, which promotes high performance and endurance.

Part No. 65-923+000 (oro2u.com) Valve Guides STD.