En stock90307-QSM-A000 Swing arm nut 12mm for SUPER SOCO CPX, the SUPER SOCO NEW TS, the SUPER SOCO STREET HUNTER and the SUPER SOCO TC-MAX Original spare part for Supersoco motorcycles and electric scooters. This original replacement part will not offer a performance gain but this original Super-Soco part fits perfectly on your Super soco Motorcycle or Electric Scooter