Replacement Cylinder Kit for 143cc/60mm w/ V2 Heads - KLX110 / Z125 drain bolt *For closed course competition only

*For closed course competition only

- NEW UPDATE Sept 2024 - Lightweight FORGED high compression domed 60mm piston with rings

• Chrome silicon high-tension spring

Better than OEM Quality

Note: Image is for reference only

Replacement Cylinder Kit for 143cc/60mm w/ V2 Heads - KLX110 / Z125 drain bolt *For closed course competition onlyTB Parts (aka Trail Bikes) 143cc Big Bore Kit V2 Race Head (60mm): If you already have the TB V2 Race Head and need a new 143cc bore kit, this is the one you want as it comes with the matching high compression piston for the V2 head. Ceramic coated all aluminum cylinder (no steel sleeve) TBW1390 Lightweight high compression domed 60mm piston with rings, pin, & clips (for the TB Parts V2 Race Head only) Head gasket kit Now includes the cylinder head o