The Hyosung isn't your typical small bike. The engine's spec sheet reads like a race motor: 10,000RPM power peak, 28HP from a 250 V-twin (30 in GT250 sport trim!), roller cam bearings, and an astounding 11,500RPM redline.
Funny you have a Suzuki, because Hyosung has done lots of engine development with them...and it shows, in both companies.