TB 165cc Bore Kit, Race Head V2, and Intake Manifold Kit - Z125 Oils and bigger

and bigger

please use the High Compression 60mm Piston Kit (SKU – TBW1390) also available in this section

60 x 32 hole

Billet Aluminum Top Clamp

TB 165cc Bore Kit, Race Head V2, and Intake Manifold Kit - Z125 Oils and biggerTB 165cc Bore Kit, Race Head V2, and Intake Manifold Kit TB 165cc Big Bore Kit, Race Head V2, and Intake Manifold Kit This is the next step up in power after the 143cc kits. Of course, the upside is the extra power but the one downside is this particular kit requires engine dis assembly and case boring for installation of the bigger cylinder. However, its a great kit to upgrade to while your engine is apart, say for installation of a stroker crank or