GS 150R is a good bike, I bought it in April 2009, have completed 30000 km, the technology used in the engine is great but if u can obtain full power from this devil it can take u above 140km/h(as I have driven it in 136km/h.
I have to slow down as it was a short stretch. Balance is very good which gives you an advantage while driving in high speed.As far as mileage is concerned it gave me 70km/lt in initial period than 30-40 but now again on 70km/lt. Also to tell you that all 30000km was driven in himachal. It is better than bajaj 150&180, tvs160 & 180RTR, Honda unicorn, all hero honda’s & yamaha fazer & R15.
DRIVE CURIOUSLY!