Retaining nut for flywheel. Use a 12mm socket to install or remove.
Zenoah part # 1650-43230
Stock part on the Zenoah
G230RC G260RC G240RC G270RC G290RC Engines
G23LH G2D G43L GZ25N14 GZ25N23
G260PU
King RC uses as the replacement stock part on the
CY23 CY26 CY27 Cy29 GP290
GP460
