Carburettor Parts. This product is suitable for the Derbi Senda 50 SM DRD 03-04 (EBE050) [VTHSDR1HB]. Transmission Needle Roller Bearing - Derbi EBE/EBS & D50B0 50cc. Derbi GP 50cc Series O2 5.3g Naraku HD Variator Rollers 19x15.5mm.