Nuclear ASM R02SP Type 5 .21 on-road engine

Japanese brand Nuclear have introduced their new ultra-high performance ASM R02SP Type 5 3.5cc nitro on-road engine. Building on the Type 4 the latest variant features modified internals such as conrod, sleeve, piston pin and cover plate to ensure a maximum of performance. In addition the piston received a special treatment to greatly reduce friction while keeping full compression, further upping overall performance. The engine comes with the C1 combustion camber insert for increased torque and it is available with the M1 or fixed venturi M2 carburettor.

Source: Nuclear [nuclear.ne.jp]