KTM 4-STROKE
MODEL
YEARS
PISTON PART # WÖSSNER COMPR. RATIO OEM COMPR. RATIO
PISTON SIZE
OVERSIZE
RING SET
8592DA
74.95
STD
750XDS-3
8592DB
74.96
+0.01
750XDS-3
EXC 250 RACING
2001-2006
12.8:1
12.0:1
SX-F 250
2006-2012
8645DA
75.96
STD
TPR76.00/2
EXC-F 250
2007-2013
8645DB
75.97
+0.01
TPR76.00/2
12.9:1
12.8:1
XC-F 250
2006-2012
8645DC
75.98
+0.02
TPR76.00/2
XCF-W 250
2007-2012
8645D400
79.96
+4.00
800XDS-3
SX-F 250
2006-2012
8690DA
75.96
STD
TPR76.00/2
EXC-F 250
2007-2013
8690DB
75.97
+0.01
TPR76.00/2
14.4:1
12.8:1
XC-F 250
2006-2012
8690DC
75.98
+0.02
TPR76.00/2
XCF-W 250
2007-2012
8690D400
79.96
+4.00
800XDS-3
SX-F 250
2013-2015
8865DA
77.96
STD
TPR78.00/2
EXC-F 250
2014-2022
8865DB
77.97
+0.01
TPR78.00/2
13.9:1
13.9:1
8865DC
77.98
+0.02
TPR78.00/2
8979DA
77.96
STD
TPR78.00/2
8979DB
77.97
+0.01
TPR78.00/2
EXC-F 250
2014-2022
8979DC
14.23:1
13.9:1
77.98
+0.02
TPR78.00/2
190
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