crankshaft bearings Naraku heavy duty left and right incl. oil seals for Derbi EBE, EBS, D50B0 NK100.79 fitting for Aprilia RS Replica 50 PG000 1999-2001,

Naraku HD (Heavy Duty) crank main bearing set. Set contains left and right crank bearings in metal cage and relevant shaft seals. Only bearings with C3 bearing clearance from NTN or KOYO used. Please note! When changing the crank, always use new bearings and seals. Suitable for Derbi EBE / EBS engines and the new Piaggio engine D50B0 (used from 2006-)