Trail Bikes 165cc Bore Kit - KLX110/L / Z125

165cc Big Bore Performance Kit (64mm) Key Features: Ceramic coated all aluminum cylinder (no steel sleeve) Lightweight high compression domed 64mm piston with rings, pin, & clips Head gasket kit – Now includes the cylinder head o-ring set and an exhaust gasket. This is our most affordable 165 bore kit for the KLX110. It works great with your KLX stock head, our Race Head, or our new V2 Race Head. The kit includes an all aluminum ceramic plated 64mm cylinder which will increase your engine displacement to 165cc. This cylinder is lighter than a steel sleeved aluminum cylinder, reduces friction (increasing power), improves sealing, and provides better heat transfer (runs and cools down quicker). Additionally, our head gasket kit includes a head o-ring set and exhaust gasket so you don’t have to re-use your old ones or make an extra trip to your local dealer to get new ones and spend more money. These are high-quality parts and definitely will dramatically increase the power and fun