ORO2U Dirt Catalogue - Section E - Engine and Performance.

Kibblewhite

Valve Guides

C630 Bronze guides C630 is a blend of copper, nickel, and aluminium. The high copper content gives excellent thermal qualities, the nickel makes the guide tough and wear resistant, and the aluminium brings work hardening characteristics. This bronze alloy allows for tighter clearances than other materials, creating better valve and seat sealing, as well as superior oil control. The expansion qualities of C630 bronze make it especially compatible with aluminium cylinder heads.

• 80% copper content delivers outstanding heat conductivity. 20% more copper than the typical maganese bronze guide alloy. • 5% Nickel content provides hardness, stability and resistance to both chemical and friction wear at the high temperatures and loading seen in these applications. Double the nickel content of the typical manganese bronze guide material.

65-922

65-923

65-924

65-925 65-926

65-927

65-928

65-929

65-930

65-931

65-932

65-933 65-934

65-935 65-936

65-937 65-938

KTM

Intake

Exhaust

Models SX-F 250 SX-F 250 SX-F 250

Years

O.D Part No. 10.06mm 65-909+000

O.D Part No.

2005 - 07 2008 - 11

10.06mm 11.06mm 12.06mm 12.06mm 12.06mm

+000 10.06mm +000 11.06mm +000 12.06mm +000 12.06mm +000 12.06mm

+000 +000 +000 +000 +000

65-907 65-956 65-903 65-903 65-903

65-908 65-957 65-904 65-904 65-904

2012

400 (Excl. LC)

2000 - 09 2002 - 07 2002 - 09

450

520-560

65-945

65-939 65-940

65-943 65-944

65-941 65-942

ROTAX

Intake

Exhaust

Models

Years

O.D Part No.

O.D Part No.

Air Cooled Singles 500/600 1982 - 06

12.57mm

12.57mm

65-9664

65-9665

SUZUKI

Intake

Exhaust

Models DR 250 RM-Z 250 RM-Z 250

Years

O.D Part No.

O.D Part No.

1990 - 99 2004 - 06 2007 - 17 1990 - 99 2005 - 07 2008 - 18

10.60mm 11.09mm 9.60mm 10.60mm 10.60mm 10.60mm

+000 10.60mm +000 11.09mm +000 9.60mm +000 10.60mm +000 10.60mm +000 10.60mm

+000 +000 +000 +000 +000 +000

65-931 65-958 65-932 65-931 65-934 65-933

65-931 65-958 65-932 65-931 65-934 65-933

65-950

65-949

65-947

65-946

DR 350S/SE

RM-Z 450 RM-Z 450

YAMAHA

Intake

Exhaust

Models

Years

O.D Part No.

O.D Part No.

YZ/WR 250F YZ/WR 400F YZ/WR 426F

2001 - 13 1998 - 00 2000 - 02 2003 - 13 2003 - 09 2010 - 17 2016 - 18

9.05mm 10.05mm 10.05mm 10.05mm 10.05mm 11.06mm 11.06mm

+000 10.06mm +000 10.05mm +000 10.05mm +000 10.05mm +000 10.05mm +000 11.06mm +000 11.06mm

+000 +000 +000 +000 +000 +000 +000

65-935 65-941 65-941 65-939 65-939 65-937 65-937

65-936 65-942 65-942 65-940 65-940 65-938 65-938

WR 450F YZ 450F YZ 450F YZ 450FX

65-958

65-953

65-956 65-957

65-954 65-955

*Please visit our website for current prices

E-mail: sales@oro2u.com

www.oro2u.com

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