for TA150
cruising at 6th gear:
-80kmh at 4000rpm (most comfortable speed, engine sound very
quiet)
-90kmh at 5000rpm (getting abit stressed at mid range, but enough
for overtaking vehicles on the left lane)
-100km/h at 6000rpm (the engine sounds slightly different from wat
u hear at 80km/h, gd for cruising on the expressway, speed limit
90km/h is actually 100km/h on ur analog meter)
-110km/h at 7000rpm (valve opens, different engine sound, can feel
the acceleration if u throttle more)