HONDA 4-STROKE
MODEL
YEARS
PISTON PART # WÖSSNER COMPR. RATIO OEM COMPR. RATIO
PISTON SIZE
OVERSIZE
RING SET
CRF 230 F
2003-2019
8774DA
65.46
STD
655XKS-3
CRF 230 L
2008-2009
8774D050
65.96
+0.50
660XKS-3
11.0:1
9.0:1
8774D100
66.46
+1.00
665XKS-3
8774D150
66.96
+1.50
670XKS-3
8774D200
67.46
+2.00
675XKS-3
XL 250 S
1979-1981
8791DA
73.94
STD
740XDS-3
XR 250 R
1981 - 1982
8791D050
74.44
+0.50
745XDS-3
10.0:1
9.0:1
XL 250 R
1982 - 1983
8791D100
74.94
+1.00
750XDS-3
8791D150
75.44
+1.50
755XDS-3
8791D200
75.94
+2.00
760XDS-3
XR 250 R RFVC
1988 -2004
8793DA
72.94
STD
730XDS-3
XR 250 RFVC
1986 - 2004
8793D050
73.44
+0.50
735XDS-3
XL 250 L RFVC
1991 - 1996
8793D100
73.94
+1.00
740XDS-3
10.5:1
9.3:1
XL 250 RFVC
1991 - 1996
8793D250
75.44
+2.50
755XDS-3
8793D400
76.94
+4.00
770XDS-3
8793D500
77.94
+5.00
780XDS-3
CRF 250 L
2013-2017
8884DA
75.96
STD
760XAS-3
CRF 250 M
2014-2017
8884D200
77.96
+2.00
TPR78.00
CRF 250 RALLY
2017
8884D500
80.96
+5.00
810XDS-3
10.8:1
10.7:1
CRF 250 R
2004-2005
8587DA
12.9:1
77.95
STD
TPR78.00
CRF 250 X
2004-2017
8587DB
77.96
+0.01
TPR78.00
12.9:1
8587DC
77.97
+0.02
TPR78.00
8587D400
14.15:1
81.95
+4.00
820XDS
72
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