Bolt PART NUMBER: 07-031-1330 DIAMO ATV 250cc LONCIN 250cc Dirtbike, ATV, Avalanche, 300cc Storm, RS250 Dirt many of these parts are the same for these models so please look at your OEM part and schematics before ordering. Imported by several brands these 250cc engines are very common. Please check with your OEM to see if it is a 250cc engine. Known names Avalance ATV, STORM 250 and 300cc.