GASGAS 4-STROKE
MODEL
YEARS
PISTON PART # WÖSSNER COMPR. RATIO OEM COMPR. RATIO
PISTON SIZE
OVERSIZE
RING SET
8614DA
76.96
STD
RIK77.00D3
8614DB
76.97
+0.01
RIK77.00D3
EC 250 F
2010-2015
8614DC
12.5:1
12.5:1
76.98
+0.02
RIK77.00D3
8612DA
76.96
STD
RIK77.00D
8612DB
76.97
+0.01
RIK77.00D
EC 250 F
2010-2015
8612DC
13.5:1
12.5:1
76.98
+0.02
RIK77.00D
8865DA
77.96
STD
TPR78.00/2
8865DB
77.97
+0.01
TPR78.00/2
EC 250 F
2021 - 2023
8865DC
13.9:1
13.9:1
77.98
+0.02
TPR78.00/2
8979DA
77.96
STD
TPR78.00/2
8979DB
77.97
+0.01
TPR78.00/2
EC 250 F
2021 - 2023
8979DC
14.23:1
13.9:1
77.98
+0.02
TPR78.00/2
8874DA
77.96
STD
TPR78.00/2
8874DB
77.97
+0.01
TPR78.00/2
EC 250 F
2021 - 2023
14.5:1
13.9:1
8874DC
77.98
+0.02
TPR78.00/2
42
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