Man from Yamaha Town in Vietnam claimed when test drive the bike reached 137kph at top gear 10.200rpm on speedometer,may be the real speed will between 125-127khpany vietnamese paps there knows its test topspeed? it should be able to attain 135kph otherwise other 150cc bikes there will still be bragging there about their 135kph acclaimed stock bike(r150) & is it easily open for modification since it's FI?