ORO2U Dirt Catalogue - Section E - Engine and Performance.

Piston Kits

Vertex

Vertex Piston Kits Vertex pistons have an outstanding reputation for quality and performance. Each gravtiy cast piston is created with only premium aluminium alloys utilizing an 12-21% silicon content. The silicon content in Vertex pistons is crucial to the quality of the piston - it’s critical in decreasing thermal expansion which, when an engine reaches normal operating temperatures, can change the geometry of the piston. Controlling this expansion means Vertex pistons can be run at tighter tolerances for more power, less noise and a longer lifespan of the piston. When it comes to power and perforance, Vertex pistons are hard to beat. Forged to the highest quality 2618 aluminium alloy. To aid in the break-in process, and reduce wear, Vertex pistons utilizes a unique Molybdenum Disulphide (MOS2) coating on the piston skirt.

KAWASAKI Models - 2 Stroke

Piston Type Years Size

Piston Kit

Piston Rings 56-R9030.V 56-R9323.V 56-R9323.V 56-R913.V 56-R9408.V 56-R9339.V 56-R9409.V

Piston Pin

Piston Clips

Small End Bearing

KXE 50

1999 - 01 39.5mm 22525AB 1985 - 03 43mm 24251A 1985 - 03 43mm 24276A 2000 - 23 44.5mm 22860A 2000 - 23 46.5mm 22882200 1992 - 99 47mm 22445A 1992 - 00 48mm 22502A 2001 - 13 48.5mm 22803A 2001 - 13 48.5mm 23637A 2001 - 13 50.5mm 22875200 2014 - 23 48.5mm 23637A

715036 715041 715041 715332 715332 715378 715378 715378 715378 715378 715378 715378 715286 715286 715286 715286 715286 715286 715278 711127 711127 711127 711127 711127 711127 711127 711127 711127 711127

72025 72065 72065 72065 72065 72050 72050 72050 72050 72050 72050 72050 72050 72050 72050 72050 72050 72050 72055 72071 72071 72071 72071 72071 72071 72071 72071 72071 72071 72074 72074 72074 72074 72074 72074 72074 72074 72074 72074

KX 60 KX 60 KX 65

56-6308.VERTEX 56-6308.VERTEX 56-6308.VERTEX 56-6308.VERTEX 56-807.VERTEX 56-807.VERTEX 56-807.VERTEX 56-807.VERTEX 56-807.VERTEX 56-807.VERTEX 56-807.VERTEX 56-807.VERTEX 56-807.VERTEX 56-807.VERTEX 56-807.VERTEX 56-807.VERTEX 56-806.VERTEX 56-814.VERTEX 56-814.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-800.VERTEX 56-8811.VERTEX 56-8811.VERTEX 56-8811.VERTEX 56-8811.VERTEX 56-8811.VERTEX 56-8811.VERTEX 56-8811.VERTEX 56-8811.VERTEX 56-8811.VERTEX 56-8811.VERTEX

Race

KX 65 (Big Bore)

KX 80

KX 80 (USA)

KX 85

56-R909.V 56-R909.V

Race

KX 85 (Single Ring) KX 85 (Big Bore) KX 85 (Single Ring) KX 85 (Single Ring 0,8)

53010005050

56-R909.V

Race Evolution 2014 - 23 48.5mm 24582A

56508004850 56-R9412.V 56-R9412.V 56-R9412.V 56-R9413.V 56-R9432.V 56502005250 56-R9332.V 56-R9332.V 56-R9332.V 56-R9332.V 56-R9332.V 56-R9332.V 56-R9332.V 56-R9332.V 56-R9332.V 56-R9332.V 56-R9332.V 56-R9311.V 56-R9311.V 56-R9311.V 56-R9311.V 56-R9311.V 56-R9311.V 56-R9311.V 56-R9311.V 56-R9311.V 56-R9311.V

KX 100

1998 - 13 52.5mm 23614A 1998 - 13 52.5mm 23621A 2014 - 22 52.5mm 23621A 2014 - 22 53.mm 23621050 2014 - 22 54.5mm 23621200 2022 - 23 52.5mm 24578A 1992 - 93 54mm 22248A

Race

KX 100 (Single Ring) KX 100 (Single Ring) KX 100 (Single Ring) KX 100 (Single Ring)

KX 112

KX-KXE 125 KX-KXE 125 KX-KXE 125 KX-KXE 125 KX-KXE 125 KX-KXE 125 KX-KXE 125 KX-KXE 125 KX-KXE 125 KX-KXE 125 KX-KXE 125 KX-KXE 250 KX-KXE 250 KX-KXE 250 KX-KXE 250 KX-KXE 250 KX-KXE 250 KX-KXE 250 KX-KXE 250 KX-KXE 250 KX-KXE 250

1994

54mm 22245A

1995 - 97 54mm 22306A

1998

54mm 22509A

1999 - 00 54mm 22578A 2001 - 02 54mm 22712A 2003 - 08 54mm 23004A 1995 - 00 54mm 22498A

Race

Pro Race

1998 - 00 54mm 56-W741+00A.V

Race

2001 - 08 54mm 22714A 2001 - 08 54mm 22716A 1992 - 97 66.4mm 22244A 1998 - 01 66.4mm 22521A 1998 - 01 66.4mm 22579A 1998 - 01 66.4mm 22644A 2002 - 04 66.4mm 22795A 2002 - 04 66.4mm 22797A 2002 - 04 66.4mm 22799A 2005 - 08 66.4mm 23124A 2005 - 08 66.4mm 23125A 2005 - 08 66.4mm 23126A

Pro Race

56-7924.V 56-7924.V 56-7924.V 56-7924.V 56-7924.V 56-7924.V 56-7924.V 56-7924.V 56-7924.V 56-7924.V

Race

Pro Race

Race

Pro Race

Race

Pro Race

*Please visit our website for current prices

* Note; Most Kits are available from standard size up to +2.00mm over size *

www.oro2u.com

Tel: 01597 822 666

Fax: 01597 825 224

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