- Big Bore Kit
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50 Caliber Racing 88cc Vintage Big Bore Kit withRace Head for Z50 Mini Trail 68-78
50 Caliber Racing 88cc Big Bore Kit with Race Head for Vintage Honda Z50 Mini Bikes. 88cc Race head big bore kit for your vintage Honda pit bike. Complete with a 52mm piston and cylinder, fully assembled race head with 25/22mm valves and revised chamber. 20mm carburetor with intake, filter and cable.
Everything necessary to fulfill your need for speed!