The new Sonic V.12RS is the further development of the successful V.12T engine. Featuring a completely new designed 3 port sleeve with teardrop work and a domed piston for a better combustion, the overall performance of the engine is improved notably. Additionally the engine is equipped with a “knife edged” conrod and a balanced crankshaft with a red silicone insert to reduce inner turbulence and optimize the fuel flow. Like the new 3,5ccm engine the V.12RS is equipped with Swiss ball bearings, a fuel-flow optimized back plate, an ultra lightweight cooling head and a composite valve carburetor with a 5.4mm aluminium venturi.