DRC Front Sprocket 520 D331-D6146 Steel DRC DRC front sprocket steel D331-D6146. See if it fits your bike. Beta RR 125 LC 2T Enduro Beta RR 125 LC 2T X-Pro Beta RR 200 LC 2T Beta RR 200 LC 2T X-Pro Beta RR 250 2T Enduro Beta RR 250 2T X-Pro Beta RR 300 LC 2T Beta RR 300 LC 2T X-Pro Beta RR 350 4T Beta RR 350 EFI X-Pro Beta RR 390 4T Beta RR 390 4T X-Pro