Kawasaki KB 100 is very good 2stroke bike.excellent classic stylish bike with more pick up and power than suzuki. It is very good bike than all kawasaki model bikes. It has never given me any trouble except for usual wear and tare like change of spark plug, bulbs, tyres etc. Simply reliable like a pet dog. Gives good average.I would say 45-50 kmph is ideal for this bike since you get the best combo of speed v/s sound. It has 4 speed gear box.In the bike it have a substantial gap between the 1st and the second gear. It is the First indian bike with central locking fuel gauge.when I ride the bike I feel that Most stable n balanced ride due to superior delta engine having low friction design. Only bike then with engine kill switch for emmergency control. handlebars is tiny and the Choke lever is available at handlebar.it is the Most aerodynamically advanced bike in its category.THUMBS UP for it.