 The high RPMs needed to produce competitive power in a small engine generated valve float, which Taglioni believed could be overcome with desmodromic valve actuation.The 125 Grand Prix could produce 16 hp at 11,500 rpm, its true rev limit, while the Desmo could crank out 19 hp at 12,500 rpm and could “safely” (bottom end permitting) rev further to 15,000.Big-end life was short at these sorts of revs and new crankshaft bearings were put in for every race.