1)bore diamater:45.2mm 2)Process:die casting and machining 3)OEM orders are welcome Item NameCylinder XH-58Cylinder Diameter45.2mmBody MaterialAluminum AlloyDisplacement54.6ccPower(Petrol/Gas)2.2kwFits MachineKomastu 5800 chainsawElectroplating ProcessChromiumColorwhite/blackParts Models: Komatsu chainsaw part: 3800/4300/4600/5200/5800/6200 chainsaw part etc. Stihl Chain Saw Parts: MS 070 chain ...