0-100 (km/h) acceleration Tomos AT-50 racing. 

setup:
-Ported Puch PCCD aluminum racing cylinder, 38mm, 49ccm. Extra transfer ports (130°) and auxiliary exhaust ports (190°).
-Reed valve intake conversion.
-Dellorto 17.5mm carb.
-Reinforced racing crankshaft
-HPI 2ten racing ignition
-Modified Homoet P6 exhaust.
-Crankcase flowed.
-New bearings and seals.
-Improved combustion camber design and squish (0.6mm).
-Single ring, windowed piston.
-velocity stack and Polini air filter.