Ok for racing!
This high quality German designed Stage 6 brand cylinder is designed with porting for big torque yet ability to rev on too. Great power and torque capability for big punch off the line plus big improvement in hillclimbing.
The performance is similar to the sport pro, better take off but .5hp less peak power. Top performance at 10k rpm, 8-11hp.
Cast iron body for stability and strength
Advanced port map for high power at all RPM
Custom head with computer designed squish area and bowl shape
Excellent construction and nice finish
Recommended for sports or street use. Good durability for street use too.
To suit 2 stroke 49cc air cooled scooters:
Yamaha Jog RR (LC)
Yamaha Aerox 50 (including Cat, Naked, R)
All other 2 stroke 50cc Taiwanese and Chinese scooters with horizontal, liquid cooled Minarelli type engine and 10mm piston pin
This kit must be fitted and the carb tuned by a technician or skilled person. Piston seizure is a symptom of poor carb tuning and claims regarding these kinds of problems will not be accepted. This increases your engine size to approx 70cc so your bike may not be registered as a moped in NZ.