The 2009 QLINK Sting 150 may be a more suitable choice for many customers with broader transportation needs than the smaller Sting 50. The QLINK Sting 150 definitely qualifies as a large scooter. Powered by a 149.5cc, single-cylinder, four-stroke, DOHC engine, the 2009 QLINK Sting 150 accommodates a wide variety of city usage options. The Sting 150, like the Sting 50, uses a carburetor for fuel injection. With a manufacturer's suggested retail price (MSRP) of only $200 more than the Sting 50, this model appeals to experienced scooter riders, or any rider who intends to travel over 30 mph. The Sting 150 travels comfortably from 45 to 55 mph, making it the model of choice for most city commuters.