Crankshaft Bearing Set FKM for Gilera Runner, Piaggio Hexagon, Italjet Dragster 125, 180ccA set of high quality Japanese NTN bearings with C3 clearance and FKM shaft sealsThe set includes the crankshaft bearings left and right as well as the associated sealing ringsFKM seals are among the best oil seals currently available on the marketWhen changing the crankshaft, always use new bearings and crankshaft sealsThe difference between FPM, FKM, Viton®: Behind the abbreviations or names mentioned is the identical basic material - fluororubber. FKM is the abbreviation for fluoroelastomers according to the American ASTM standard. Viton®, on the other hand, is a trademark of the company DuPont Performance ElastomersIn our range, all fluoro rubber articles are designated with the abbreviation FKM