HONDA 4-STROKE
MODEL
YEARS
PISTON PART # WÖSSNER COMPR. RATIO OEM COMPR. RATIO
PISTON SIZE
OVERSIZE
RING SET
8925DA
76.76
STD
RIK76.80
8925DB
76.77
+0.01
RIK76.80
CRF 250 R
2016-2017
8925DC
14.0:1
13.5:1
76.78
+0.02
RIK76.80
CRF 250 R
2018-2019
8952DA
78.96
STD
RIK79.00D
CRF 250 RX
2019
8952DB
78.97
+0.01
RIK79.00D
14.0:1
13.9:1
CRF 250 R
2018-2019
4071DA
78.96
STD
RIK79.00D
CRF 250 RX
2019
4071DB
78.97
+0.01
RIK79.00D
4071DC
78.98
+0.02
RIK79.00D
14.5:1
13.9:1
CRF 250 R
2020-2025
8967DA
78.96
STD
RIK79.00D
CRF 250 RX
2020-2025
8967DB
78.97
+0.01
RIK79.00D
13.9:1
13.9:1
8967DC
78.98
+0.02
RIK79.00D
CRF 250 R
2020-2025
8985DA
78.96
STD
RIK79.00D
CRF 250 RX
2020-2025
8985DB
78.97
+0.01
RIK79.00D
8985DC
78.98
+0.02
RIK79.00D
14.5:1
13.9:1
76
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