Cylinder Works
Cylinder Kits
Standard Cylinder Only
Standard Bore Cylinder Kit
Big Bore Cylinder Kit
HONDA Models 4-Stroke
Years Disp. Dia.
Part No.
Disp. Dia.
Part No.
Disp. Dia.
Oversize Part No.
CRF 150 R/RB CRF 150 R/RB CRF 150 R/RB CRF 150 R/RB
2007 - 09 150cc 66mm 56-K116.66.CW 2010 - 11 150cc 66mm 56-K116.66.CW 2012 - 25 150cc 66mm 56-K116.66.CW
160cc 68mm +2mm 56-K116.68.CKW1
160cc 68mm +2mm 56-K116.68.CKW2
2026
150cc 66mm 56-K116.66.CW
256cc 79mm +1mm 56-K100.79.CKW Replacement Vertex Piston Kit: 23461 Replacement Top End Gaskets: 56-K100.79.GKW 270cc 81mm +3mm 56-K100.81.K.W Replacement Vertex Piston Kit: 23535 Replacement Top End Gaskets: 56-K100.81.G.CW 270cc 80mm +3mm 56-K134.80.WORK Replacement Vertex Piston Kit: 23653 270cc 80mm +3mm 56-K134.80.WORK Replacement Vertex Piston Kit: 23653
CRF 250 R
2004 - 09 250cc 78mm 56-K100.78.C.W
CRF 250 R
2010 - 13 249cc 76mm 56-K134.768.C.W 250cc 76mm 56-K134.768.WORK
CRF 250 R
2014 - 17 249cc 76mm 56-K134.768.C.W
CRF 250 R
2018 - 19
56-K197.79_STD.CW 250cc 79mm 56-K197.79_STD.CWK 270cc 82mm +3mm 56-K197.82_BB.CWK
CRF 250 R (High Comp. 14.6:1)
Replacement Vertex Piston Kit: 23535
2018 - 19
250cc 79mm 56-K197.79_HC.CWK
270cc 82mm +3mm 56-K197.82_BB.CWK Replacement Vertex Piston Kit: 23535
CRF 250 R
2020 - 21 250cc 79mm 56-K197.79_STD.CW 250cc 79mm 56-K197.79_STD.CWK1
CW11011K02**
CRF 250 R CRF 250 R
2022 - 25 250cc 79mm 56-K197.79_STD.CW 250cc 79mm 56-K197.79_STD.CWK2 270cc 82mm +3mm
2026 2025 2026
250cc 79mm 56-K197.79_STD.CW
CW11011K02**
CRF 250 RWE CRF 250 RWE CRF 250 RX
250cc 79mm 56-K197.79_STD.CW 250cc 79mm 56-K197.79_STD.CWK2 270cc 82mm +3mm
250cc 79mm 56-K197.79_STD.CW
2019 250cc 79mm 56-K197.79_STD.CW 250cc 79mm 56-K197.79_STD.CWK 270cc 82mm +3mm 56-K197.82_BB.CWK
CRF 250 RX (High Comp. 14.6:1)
Replacement Vertex Piston Kit: 23535
2019
250cc 79mm 56-K197.79_HC.CWK
270cc 82mm +3mm 56-K197.82_BB.CWK Replacement Vertex Piston Kit: 23535
CRF 250 RX
2020 - 21 250cc 79mm 56-K197.79_STD.CW 250cc 79mm 56-K197.79.CWK
CW11011K02**
CRF 250 RX CRF 250 RX
2022 - 25 250cc 79mm 56-K197.79_STD.CW 250cc 79mm 56-K197.79_STD.CWK2 270cc 82mm +3mm
2026
250cc 79mm 56-K197.79_STD.CW
256cc 79mm +1mm 56-K100.79.CKW Replacement Vertex Piston Kit: 23461 Replacement Top End Gaskets: 56-K100.79.GKW 270cc 81mm +3mm 56-K100.81.K.W Replacement Vertex Piston Kit: 23535 Replacement Top End Gaskets: 56-K100.81.G.CW 488cc 100mm +4mm 56-K100.100.CKW Replacement Vertex Piston Kit: 22966 480cc 99mm +3mm 56-K142.099.CKW1 Replacement Vertex Piston Kit: 23534 Replacement Top End Gaskets: 56-K142.099.GKW 480cc 99mm +3mm 56-K142.099.CKW2 Replacement Vertex Piston Kit: 23924 Replacement Top End Gaskets: 56-K142.099.GKW 480cc 99mm +3mm 56-K188.099.CKW Replacement Vertex Piston Kit: 24198
CRF 250 X
2004 - 17 250cc 78mm 56-K100.78.C.W
CRF 450 R
2002 - 08 449cc 96mm 56-K101.096.CW
CRF 450 R
2009 - 12 449cc 96mm 56-K142.096.C.W 449cc 96mm 56-K142.096.CKW
CRF 450 R
2013 - 16 449cc 96mm 56-K142.096.C.W
CRF 450 R
2017 - 18 450cc 96mm 56-K188.096.CYW 450cc 96mm 56-K188.096.CKW
11010-K02**
480cc 99mm +3mm
CRF 450 R / RWE
2019 - 20 450cc 96mm 56-K188.096.CYW 450cc 96mm 56-K188.096.CKW2
Replacement Vertex Piston Kit: 24198
11010-K03**
CRF 450 R / RWE CRF 450 R / RWE
2021 - 25 450cc 96mm 56-K188.096.CYW 450cc 96mm 56-K188.096.CKW3
480cc 99mm +3mm
2026
450cc 96mm 56-K188.096.CYW
480cc 99mm +3mm 56-K188.099.CKW Replacement Vertex Piston Kit: 24198
CRF 450 RX
2017 - 18 450cc 96mm 56-K188.096.CYW 450cc 96mm 56-K188.096.CKW
11010-K02**
480cc 99mm +3mm
CRF 450 RX
2019 - 20 450cc 96mm 56-K188.096.CYW 450cc 96mm 56-K188.096.CKW2
Replacement Vertex Piston Kit: 24198
11010-K03**
CRF 450 RX CRF 450 RX
2021 - 25 450cc 96mm 56-K188.096.CYW 450cc 96mm 56-K188.096.CKW3
480cc 99mm +3mm
2026
450cc 96mm 56-K188.096.CYW
480cc 99mm +3mm 56-K115.099.CKW Replacement Vertex Piston Kit: 23595
CRF 450 X
2005 - 17 449cc 96mm 56-K115.096.CW
**Please note these items are By Order Only
*Please visit our website for current prices E105
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