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
Piston Clips
Small End Bearing
RS125
1985 - 09 54mm All Years 56mm
.WO .WO
.WO
– –
56-W046 56-W255
56-R421 56-R431
56-783
56-0151 56-0152
RS250 Single Ring
.WO
.WO
56-7925
BETA 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
RR 125 Enduro RR 250 Enduro
2018 - 23 54mm 2013 - 17 66.4mm 2018 - 24 66.4mm 2013 - 17 72mm 2018 - 21 72mm 2022 - 23 73mm 2015 - 17 72mm 2018 - 21 72mm
.A.WO
.WO
.WO
.WO .WO .WO .WO .WO .WO .WO .WO .WO
56-W213
56-R408 56-R420 56-R420 56-R372 56-R372 56-R256 56-R372 56-R372 56-R256
56-783
56-0151 56-0153 56-0153 56-0153 56-0153 56-0153 56-0153 56-0153 56-0153
56-800 56-801 56-801 56-802 56-802 56-802 56-802 56-802 56-802
.A.WO .A.WO
.1.WO .1.WO
.WO .WO
.WO .WO .WO .WO .WO .WO .WO .WO
56-W9020 56-W9020 56-W9921 56-W6723 56-W6725 56-W9921 56-W6723 56-W6725
56-7924 56-7924
Xtrainer 250
RR 300 RR 300 RR 300
56-785
56-7948 56-7948
.A.WO
Xtrainer 300 Xtrainer 300 Xtrainer 300
56-785
56-7948 56-7948
2022
73mm
.A.WO
4-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
RR 250 RR 250
2005 - 07 75mm 2015 - 19 75mm 2016 - 23 88mm 2016 - 23 95mm 2005 - 09 89mm 2024 - 25 97mm 2016 - 23 100mm 2005 - 09 95mm 2005 - 09 95mm
.WO .WO
.WO .WO
.WO .WO .WO
.WO .WO .WO
– – – – – – – –
56-W029 56-W029
56-R362 56-R362
56-7918 56-7918 56-7984 56-7964
56-0155 56-0155 56-0153 56-0154
RR 390 Enduro RR 430 Enduro
.A.WO .A.WO
.WO .WO
56-W9836 56-W6726
56-R333 56-R329
RR 450 RX 450
.WO
.WO
.WO
.WO
56-W178
56-R363
56-7927
56-0155
.A.WO .A.WO
56-W8833 56-W9929 56-W4731
RR 480 Enduro
.WO .WO .WO
56-R559 56-R554 56-R554
56-7964
56-0154 56-0155 56-0155
RR 525
.WO
.WO .WO
RR 525 ( High Comp )
.WO
.WO
56-W216
56-7918
BULTACO 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
TS 250
1970
72mm
.WO
.WO
.WO
–
56-W971
56-R372
56-7923
56-0152
CAGIVA 2-Stroke Models
Years
Size
Piston Kit
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
125 Mito ( Domed ) 125 Mito ( Flat Top )
1999 - 12 56mm 1993 - 98 56mm
.B .B
.WO .WO
– –
56-W941 56-W940
56-R365 56-R365
56-7925 56-7925
56-0152 56-0152
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 E29
E-mail: sales@oro2u.com
www.oro2u.com
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