ORO2U Dirt Catalogue - Section E - Engine and Performance.

Piston Kits

Wossner

Wossner Piston Kits With over 25 years of custom piston and rod manufacturing, Wossner Pistons is deeply committed to bringing to market only the best and most accurately machined forged pistons and rods available. Wossner Pistons commitment to quality stems from designing racing components for top European racing teams in all types of venues to supplying the weekend racer a hop-up high compression piston, or a big bore piston to take advantage of today’s high revving high horsepower engines in both automotive and motorcycle applications.With unsurpassed quality and a commitment, Wossner Pistons will always listen to the customer as this assures you will always receive the high quality forged CNC machined components you would expect from today’s top European pis - ton and rod manufacturer. Wossner Pistons believes in continued research and development so that the end user is guaranteed to receive the highest quality machined forged piston. Wossner Pistons engineers & manufactures 2-stroke and 4-stroke motorcycle, automotive, snowmobile pistons in various bore sizes and compression ratios.

SUZUKI 2-Stroke Models

Years

Size

Piston Kit

Piston Rings

Piston Pin 56-7924.WO 56-7924.WO 56-7924.WO 56-7924.WO 56-7924.WO

Piston Clips

Small End Bearing

RM 250 RM 250 RM 250 RM 250 RM 250 RM 250 RM 250 RM 250 RM 250

1977 - 81 67mm 1982 - 85 70mm

56-W474+P0.WO 56-W485+000.WO 56-W543+000.WO 56-W558+000.WO 56-W642.00A.WO 56-W681.A.WO 56-W723.WO.A 56-W681.A.WO 56-W756.A.WO 56-W823.A.WO 56-W642.00A.WO

56-R571

56-0153.WO 56-809.WO 56-0153.WO 56-809.WO 56-0153.WO 56-809.WO 56-0153.WO 56-809.WO 56-0153.WO 56-809.WO 56-0153.WO 56-809.WO 56-0153.WO 56-809.WO 56-0153.WO 56-809.WO 56-0153.WO 56-809.WO 56-0153.WO 56-809.WO 56-0153.WO 56-809.WO

56-R422.WO

1986

67mm

56-R376 56-R376 56-R571

1987 - 88 67mm 1989 - 95 67mm 1996 - 97 66.4mm

56-R420.2.WO 56-7924.WO 56-R420.2.WO 56-7924.WO 56-R420.2.WO 56-7924.WO 56-R420.2.WO 56-7924.WO 56-R420.2.WO 56-7924.WO

1998 1999

66.4mm 66.4mm

2000 - 02 66.4mm 2003 - 12 66.4mm 1989 - 99 67mm 1973 - 81 70mm 1986 - 87 70mm 1982 - 85 88.4mm

RM 250 2-Ring

RMX 250

56-R571

56-7924.WO 56-7924.WO 56-7924.WO

TS 250

56-W249.WO

56-R487.WO

56-0152.WO 56-0153.WO 56-0153.WO

TSX 250 RM 500

56-W256.000.WO

56-R422 56-R569

56-W049.WO

56-7948

4-Stroke Models

Years

Size

Piston Kit

Piston Rings

Piston Pin

Piston Clips 56-006.WO

Small End Bearing

DR-Z 110

2004 - 05 55mm 2002 - 09 57mm 2002 - 09 73mm 2004 - 06 77mm 2004 - 06 77mm 2007 - 09 77mm 2007 - 09 77mm 2010 - 23 77mm 2010 - 23 77mm 1990 - 99 79mm 1990 - 99 83mm 2000 - 20 90mm

56-W300+200.WO 56-W301+00A.WO 56-W304.A.WO 56-W4842.A.WO 56-W306.A.WO 56-W4921.A.WO 56-W305.A.WO 56-W951.A.WO 56-W260.A.WO 56-W4576.A.WO 56-W4576_400.WO 56-W4713.A.WO

56-7962

– – – – – – – – – – – – – – – – – – – – –

DR-Z 125 Hi-Comp. 11:1 DR-Z 250 Hi-Comp. 11.5:1 RM-Z 250 Comp. 12.1:1

56-R275 56-R277

56-7930.WO

56-0150 56-0154

56-7964

56-R553.WO 56-R553.WO 56-R553.WO 56-R553.WO 56-R407.WO 56-R407.WO

56-7931.WO 56-7931.WO 56-7931.WO 56-7931.WO 56-7981.WO 56-7981.WO 56-7918.WO 56-7918.WO 56-7918.WO 56-7918.WO 56-7918.WO

56-0152.WO 56-0152.WO 56-0152.WO 56-0152.WO 56-0152.WO 56-0152.WO 56-0155.WO 56-0155.WO 56-0155.WO 56-0155.WO 56-0155.WO

Hi-Comp. 13.2:1

RM-Z 250 Comp. 13.4:1

Hi-Comp. 13.9:1

RM-Z 250 Comp. 13.6:1

High Comp. 14.0:1

DR 350 / SE

56-R351

Big Bore

56-R552.WO 56-R493.WO 56-R493.WO 56-R313.WO 56-R313.WO 56-R313.WO 56-R558.WO 56-R558.WO 56-R558.WO 56-R558.WO 56-R325.WO 56-R325.WO 56-R325.WO 56-R305.WO 56-R305.WO 56-R501.WO

DRZ 400 / SM Comp. 12.0:1

Hi-Comp. 13.5:1 2-Ring 2000 - 20 90mm 56-W030

Big Bore 2-Ring

2000 - 16 95.5mm 2005 - 07 95.5mm 2005 - 07 95.5mm 2008 - 12 96mm 2008 - 12 96mm 2013 - 23 96mm 2013 - 23 96mm 2013 - 23 96mm

56-W030+550.WO 56-W185.P0.WO 56-W207.A.WO 56-W4953.A.WO 56-W307.A.WO 56-W4955.A.WO 56-W4956.A.WO 56-W4982.A.WO 56-W4953.A.WO 56-W307.A.WO

RM-Z 450 Comp. 12.0:1

56-7926 56-7926 56-7926

56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0157 56-0157 56-0157

Hi-Comp 13.5:1

RM-Z 450 Comp. 12.2:1

Hi-Comp. 13.5:1 2-Ring

56-7982.WO

RM-Z 450 Comp. 12.7:1

56-7926 56-7926

Hi-Comp. 13.5:1 2-Ring

Pro Series 13.3:1

RMX 450Z Comp. 12.2:1

2010 - 19 2010 - 19

96mm 96mm

56-7926 56-7982 56-7955 56-7955 56-7955

Hi-Comp. 13.5:1

DR/SP 600

1985 - 89 95mm 56-W4597.A 1990 - 95 95mm 56-W4597.A 1996 - 09 100mm 56-W027.A

– – –

DR 650R/S/SE

DR 650SE

Please note All Piston Kits do not include small end bearings. Most Kits available from standard size up to 2.00mm over size.

Please Note Wossner Piston rings will NOT run in chrome bores!

*Please visit our website for current prices E32

www.oro2u.com

Tel: 01597 822 666

Fax: 01597 825 224

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