Polini crankshaft seal set suitable for Vespa PX 125-200cc, LML Star, Bella, DLX Deluxe 125, 150cc scooter.
Explanation: The 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 Elastomers. In our range, all fluoro rubber articles are designated with the abbreviation FKM.