Wossner
Piston Kits
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 piston 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.
APRILIA 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin 56-783.WO 56-7925.WO
Piston Clips
Small End Bearing
RS125
1985 - 09 54mm All Years 56mm
56-W046.WO 56-W255.WO
56-R421 56-R431
56-0151
– –
RS250 Single Ring
56-0152.WO
BETA 2-Stroke Models
Years
Size
Piston Kit
Piston Rings 56-R408.WO
Piston Pin 56-783.WO
Piston Clips
Small End Bearing
2018 - 23 54mm 2013 - 17 66.4mm 2018 - 24 66.4mm
RR 125 Enduro RR 250 Enduro
56-W213.A.WO 56-W9020.A.WO 56-W9020.A.WO
56-0151
56-800.WO
56-R420.1.WO 56-7924.WO 56-R420.1.WO 56-7924.WO
56-0153.WO 56-801.WO 56-0153.WO 56-801.WO 56-0153.WO 56-802.WO 56-0153.WO 56-802.WO 56-0153.WO 56-802.WO 56-0153.WO 56-802.WO 56-0153.WO 56-802.WO 56-0153.WO 56-802.WO
Xtrainer 250
RR 300 RR 300 RR 300
2013 - 17 72mm 56-W9921 2018 - 21 72mm 56-W6723
56-R372 56-R372 56-R256 56-R372 56-R372 56-R256
56-785 56-7948 56-7948 56-785 56-7948 56-7948
2022 - 23 73mm
56-W6725.A.WO
Xtrainer 300 Xtrainer 300 Xtrainer 300
2015 - 17 72mm 56-W9921 2018 - 21 72mm 56-W6723
2022
73mm
56-W6725.A.WO
4-Stroke Models
Years
Size
Piston Kit
Piston Rings 56-R362.WO 56-R362.WO 56-R333.WO 56-R329.WO 56-R363.WO 56-R559.WO 56-R554.WO 56-R554.WO
Piston Pin 56-7918.WO 56-7918.WO 56-7984.WO
Piston Clips 56-0155.WO 56-0155.WO 56-0153.WO
Small End Bearing
RR 250 RR 250
2005 - 07 75mm 2015 - 19 75mm 2016 - 23 88mm 2016 - 23 95mm 2005 - 09 89mm 2016 - 23 100mm 2005 - 09 95mm 2005 - 09 95mm
56-W029.WO 56-W029.WO
– – – – – – – –
RR 390 Enduro RR 430 Enduro
56-W9836.A.WO 56-W6726.A.WO
56-7964
56-0154
RR 450
56-W178.WO
56-7927.WO
56-0155.WO
RR 480 Enduro
56-W9929.A.WO 56-W4731.WO
56-7964
56-0154
RR 525
56-0155.WO 56-0155.WO
RR 525 ( High Comp )
56-W216.WO
56-7918.WO
BULTACO 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin 56-7923.WO
Piston Clips 56-0152.WO
Small End Bearing
TS 250
1970
72mm
56-W971.WO
56-R372
–
CAGIVA 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips 56-0152.WO 56-0152.WO
Small End Bearing
125 Mito ( Domed ) 125 Mito ( Flat Top )
1999 - 12 56mm 56-W941.B 1993 - 98 56mm 56-W940.B
56-R365 56-R365
56-7925 56-7925
– –
Please Note Wossner Piston rings will NOT run in chrome bores!
Please note All Piston Kits do not include small end bearings. Most Kits available from standard size up to 2.00mm over size.
*Please visit our website for current prices E23
E-mail: sales@oro2u.com
www.oro2u.com
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