  Updated racing valve spring conversation for Ducati 250/350/450cc Desmo singles. Allows the removal of the stock hairpin valve springs that cause a lot of drag on the valve train. These lighter springs are just the trick for racing, but you will need to do some modifications to the closing rocker arms to fit these springs. !! THESE ARE NOT A DROP IN PART AND REQUIRE MODIFYING OF THE CLOSING ROCKER ARMS !! |