ORO2U Dirt Catalogue - Section E - Engine and Performance.

Cylinder Works

Cylinder Kits

Standard Cylinder Only

Standard Bore Cylinder Kit

Big Bore Cylinder Kit

KAWASAKI

Models 2-Stroke

Years cc.

Dia.

Part No.

cc.

Dia.

Part No.

cc.

Dia.

Oversize Part No.

KX 85

2001 - 13

85

48.5mm 56-K163.485.KIT

Models 4-Stroke

Years cc.

Dia.

Part No.

cc.

Dia.

Part No.

cc.

Dia.

Part No.

270 80mm +3mm 56-K104.80.CKW Uses Vertex Piston Kit: 23405 270 80mm +3mm 56-K145.80.CKW1 Uses Vertex Piston Kit: 23405 270 80mm +3mm 56-K145.80.CKW2 Uses Vertex Piston Kit: 23680 270 80mm +3mm 56-K146.80.CKW1 Uses Vertex Piston Kit: 23654 270 80mm +3mm 56-K146.80.CKW2 Uses Vertex Piston Kit: 24032 270 80mm +3mm 56-K193.80.CKW Uses Vertex Piston Kit: 24237

KX 250F

2004 - 08 249 77mm 56-K104.77.CW

KX 250F

2009

KX 250F

2010

KX 250F

2011 - 14 249 77mm 56-K146.77.CW

KX 250F

2015 - 16 249 77mm 56-K146.77.CW

KX 250F

2017 - 19

CW31016K01**

270 81mm +3mm Uses Vertex Piston Kit: 24637

KX 250F

2020

CW31017K01** CW31017K01**

KX 250 / X KX 250 / X KX 250 / X KX 450 F

2021 - 22 250 78mm 56-K313.78.CYL.CW 250 78mm 56-K313.78.CK1.CW 270 81mm +3mm 2023 - 24 250 78mm 56-K313.78.CYL.CW 250 78mm 56-K313.78.CK2.CW 270 81mm +3mm

2025 - 26

250 78mm 56-K313.78.CYL.CW

2009 - 15 449 96mm 56-K147.096.CW

470 98mm +2mm 56-K147.098.CKW

**Please note these items are By Order Only

Standard Cylinder Only

Standard Bore Cylinder Kit

Big Bore Cylinder Kit

KTM Models 2-Stroke

Years cc. 2009 - 23 50 2009 - 23 50

Dia.

Part No.

cc.

Dia.

Part No.

cc.

Dia.

Oversize Part No.

50 SX

39mm 56-K2915.395.CYL.CW 50 39mm 56-K2915.395.CYL.CW 50 39mm 56-K2915.395.CYL.CW 50 39mm 56-K2915.395.CYL.CW 50

39mm 56-K2915.395.CK.CW 39mm 56-K2915.395.CK.CW 39mm 56-K2915.395.CK.CW 39mm 56-K2915.395.CK.CW

50 SX Mini 50 SX Pro Jr

2009

50

50 SXS

2011 - 14 50 2009 - 23 65 2013 - 14 65

65 SX

45mm 56-K195.45.CKW 45mm 56-K195.45.CKW 45mm 56-K195.45.CKW

65 SXS 65 XC 85 SX 125 SX 125 SX 125 XC

2009

65

2018 - 25 85

47mm 56-K290.47.CYL.CW 85

47mm 56-K290.47.CK.CW

2016 - 17 125 54mm 56-K1991.54.CW 125 54mm 56-K1991.54.CWK1 2018 - 22 125 54mm 56-K1991.54.CW 125 54mm 56-K1991.54.CWK2 2021 - 22 125 54mm 56-K1991.54.CW 125 54mm 56-K1991.54.CWK2 2020 - 22 300 72mm 56-K203.72.CYL.CW 300 72mm 56-K203.72.CK.CW

300 EXC TPI

300 EXC TPI Erzbergrodeo 2022

300 72mm 56-K203.72.CYL.CW 300 72mm 56-K203.72.CK.CW

300 XC TPI

2020 - 22 300 72mm 56-K203.72.CYL.CW 300 72mm 56-K203.72.CK.CW

300 XC-W TPI 2020 - 23 300 72mm 56-K203.72.CYL.CW 300 72mm 56-K203.72.CK.CW 300 XC-W TPI Erzbergrodeo 2020 - 23 300 72mm 56-K203.72.CYL.CW 300 72mm 56-K203.72.CK.CW 300 XC-W TPI Six Days 2020 - 21 300 72mm 56-K203.72.CYL.CW 300 72mm 56-K203.72.CK.CW

*Please visit our website for current prices E107

E-mail: sales@oro2u.com

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