• 3 port hard chromed sleeve
  • CNC machined flat piston
  • Aerodynamic "knife edged" connecting rod
  • Turbo combustion chamber with cooling fin
  • 12mm high quality main bearing
  • Composite slide valve carburetor
Technical data:
  • Displacement: 2,11ccm
  • Max power: 1,60 HP @ 40.000 U/min
  • Bore: 13,8mm
  • Stroke: 14,00mm
  • Front bearing: 6x16x5mm
  • Rear bearing: 12x21x5mm
  • Glowplug: Sonic S6C turbo
  • Weight: 220g
The all new Sonic ProStock.12 2,11ccm on-road engine is designed especially for club and regional racers that are looking for a competition engine for a good price. Additionally the ProStock.12 is easy to adjust and to handle which helps the racer to focus on driving and setting up the car.

Equipped with a 3 ports sleeve and a CNC machined flat piston the engine provides great power over the entire RPM range while having a very efficient fuel consumption.

The optimized crankcase and the knife edged" aerodynamic connecting rod help even more to reduce turbulences inside the engine.

A special turbo combustion chamber with a cooling fin and the lightweight cooling head ensure best heat dispersion to keep the engine temperature at a moderate level.

High quality ball bearings and a modern composite valve carburetor complete this new high competition engine.
motor4 thumb1
motor4 thumb2
motor4 thumb3