Piston Kits
Wossner
Wossner Piston Kits Wossner Pistons, Germany’s finest aftermarket forged piston and rod manufacturer. 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.
HONDA 4-Stroke Models
Years
Size
Piston Kit 56-W4924 56-W4924
Piston Rings
Piston Pin
Piston Clips
Small End Bearing
CRF 150R High Comp. 12.5:1
2007 - 09 66mm 2007 - 09 70mm 2012 - 22 66mm 2012 - 22 66mm 1986 - 91 65.5mm 1986 - 91 65.5mm 2003 - 19 65.5mm 2008 - 09 65.5mm 2013 - 17 76mm 2004 - 05 78mm 2004 - 09 78mm 2006 - 09 78mm 2010 - 13 76.8mm 2014 - 15 76.8mm 2016 - 17 76.8mm 2018 - 19 79mm
+00A.WO +400.WO
.WO .WO
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
56-R852 56-R349 56-R852 56-R852
56-7930 56-7930
56-0150 56-0150 56-0150 56-0150 56-0151 56-0151 56-0151 56-0151 56-0160 56-0154 56-0152 56-0154 56-0152 56-0152 56-0152 56-0152 56-0152 56-0152 56-0152 56-0160 56-0152 56-0152 56-0154 56-0160 56-0160 56-0154 56-0154 56-0154 56-0160 56-0160 56-0160 56-0161 56-0161 56-0155 56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0154 56-0161 56-0161 56-0161 56-010 56-010 56-010 56-010
Big Bore
CRF 150R Comp. 11.7:1
.A.WO .A.WO
.WO .WO
56-W914 56-W921
56-7930 56-7930 56-701 56-701
High Comp. 12.2:1
XR / XL185
.000.WO .000.WO +00A.WO +00A.WO
– – – –
.WO .WO .WO .WO
56-W4156 56-W4156 56-W4816 56-W4816 56-W9703 56-W4829 56-W4852 56-W4830
XR 200
CRF 230F Comp. 11:1 CRF 230L Comp. 11:1
56-701 56-701 56-7972 56-7931 56-7931 56-7931 56-7981 56-7981 56-7981 56-7981 56-7981 56-7981 56-7981 56-7972 56-7981 56-7981 56-7964 56-7936 56-7936 56-7964 56-7964 56-7964 56-7936 56-7936 56-7936 56-7933 56-7933 56-7909 56-7926 56-7926 56-7926 56-7926 56-7926 56-7926 56-7926 56-7926
CRF 250L CRF 250R
.76.WO .A.WO .A.WO
.WO .WO .WO .WO .WO .WO .WO .WO .WO .WO .WO .WO
.WO .WO .WO .WO .WO .WO .WO .WO .WO .WO .WO
.WO
56-R551 56-R557 56-R557 56-R557 56-R567 56-R567 56-R567 56-R326 56-R326 56-R326 56-R326 56-R551
CRF 250R Hi-Comp 13.9:1
.WO
CRF 250R
+00A.WO
CRF 250R Comp 14.2:1 CRF 250R Hi-Comp 14.5:1
.A.WO
.WO .WO .WO .WO .WO .WO .WO .WO .WO .WO
56-W950 56-W958
.A.WO.HC .00A.WO
CRF 250R CRF 250R
56-W8800 56-W8806 56-W4788 56-W4788 56-W8806 56-W9703 56-W4829 56-W4852 56-W4171 56-W4329 56-W4466 56-W4171 56-W4171 56-W4171 56-W4329 56-W4466 56-W4466 56-W4286
.WO
CRF 250R / RX Comp 13.90
2020 - 23 2020 - 23
79mm 79mm 79mm 76mm
.A.WO
Comp 14.50
.A.WO_H
CRF 250 RX CRF 250 Rally
2019 2017
.A.WO .76.WO .A.WO .A.WO
CRF 250 X Comp 12:9.1
2004 - 17 78mm 2004 - 17 78mm 1979 - 83 74mm 1984 - 85 75mm 1991 - 96 73mm 1979 - 82 74mm 1979 - 83 74mm
.WO .WO
.WO .WO
56-R323 56-R323 56-R211 56-R362 56-R277 56-R211 56-R211 56-R211 56-R362 56-R277 56-R821 56-R302 56-R363 56-R482 56-R558 56-R558
Hi-Comp 13:9.1
XL 250
+P0.A
.WO
XL 250R XL 250L XL 250S XR 250 XR 250 XR 250 XR 250 XR 250 XR 350
.000.WO _000.WO
.WO .WO
.WO .WO
+P0.A +P0.A +P0.A
.WO .WO .WO
1983
74mm
1984 - 85 75mm 1986 - 04 73mm 1986 - 99 77mm 1983 - 85 84mm 1981 - 82 89mm 1996 - 04 85mm 2002 - 03 96mm
.000.WO +000.WO +400.WO +00A.WO
.WO .WO .WO .WO .WO .WO
.WO .WO .WO .WO .WO .WO
XR 400 l XLS 400
+000
56-W310
XR 400
+00A.WO
.WO .WO .WO .WO
56-W4606 56-W4820
CRF 450R CRF 450R
.A.WO
2004
96mm
.A .A
56-W182 56-W183
CRF 450R Comp. 12:1
2005 - 08 96mm 2002 - 08 96mm 2002 - 08 100mm 2002 - 08 100mm 2009 - 12 96mm 2009 - 12 96mm 2013 - 14 96mm 2013 - 14 96mm 2015 - 16 96mm
56-R558 56-R558
Hi-Comp. 13.5:1
.WO
.WO .WO
56-W4822
Big Bore Comp. 11.8:1 Big Bore Comp. 12.0:1
.WO
56-W205
56-R559 56-R559
.4.0 .WO
.WO .WO .WO .WO
56-W4820 56-W4978 56-W4978
CRF 450R 12:1 Comp
56-R558 56-R558
Hi-Comp. 13.5:1
.WO.H
CRF 450R Standard Comp 12.5:1
.WO
56-W916 56-W916 56-W927
56-R558 56-R558 56-R558
56-7964 56-7924 56-7924
Hi-Comp. 13.8:1
.WO.H
.WO .WO
.WO .WO
CRF 450R Comp 12.5:1 CRF 450R / RX Comp 13.5:1
.WO
2017 - 23 2017 - 23
96mm 96mm
.A.WO .A.WO.H **
.WO .WO .WO .WO
56-W9949 56-W9949
56-R325 56-R325 56-R558 56-R306 56-R363 56-R363 56-R363 56-R307 56-R501 56-R501 56-R501 56-R501 56-R501 56-R501
56-7964 56-7964 56-7926
–
Hi-Comp. 14.0:1
CRF 450X Comp. 12:1
2005 - 17 96mm
.A
– – – – – – – – – – – –
56-W183
2019 - 23
CRF 450X XLR 500 XLS 500 XR 500R XR 600R
96mm
.WO
56-W8811
1979 - 84 89mm 1979 - 82 89mm 1979 - 82 89mm 1985 - 00 97mm 1983 - 87 100mm 1993 - 02 100mm 1993 - 99 100mm 1993 - 21 100mm 2000 - 07 100mm 2000 - 07 100mm
+000 +000 +000
.WO .WO .WO .WO .WO .WO .WO .WO
.WO .WO .WO
56-W310 56-W310 56-W310
56-7933 56-7933 56-7933 56-7915 56-7915 56-7915 56-7915 56-7915 56-7955 56-7955
.A.WO
.WO .WO .WO .WO .WO
56-W4577
XL600R Radial Head Pro Series
.A.WO
.WO .WO .WO .WO .WO .WO
56-W926
NX 650 Domnator
.00A.WO .00A.WO .00A.WO .000.WO +00A.WO
56-W4562 56-W4562 56-W4562 56-W4715 56-W4719
XR 650C XR 650L
56-010
XR 650R Comp 10.0:1
56-0157 56-0157
Hi-Comp. 11:1
Please Note Wossner Piston rings will NOT run in chrome bores!
**Requires NGK plug R0465B-10 to be used with this piston
*Please visit our website for current prices E32
www.oro2u.com
Tel: 01597 822 666
Fax: 01597 825 224
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