1. 4 valve 30HP engine
2.DOHC , NO ROCKER ARM
3. RACING POWER.

 1. DOHC:AUTO ENGINE TECH

 2. 4 VALVE: more air intake ,higher fuel burning efficiency

 3. No Rocker Arm: fewer noise,less valve adjusting

 4. Racing Power: Higher power and Higher torque 

 5. Water-cooled System: Professional design , no overheat

 6. Balance Shaft: Low vibration

 7. Leading design Piston and Piston Ring: Superresistance