Bought my wife a 2014 Ninja 300 ABS about 3 weeks ago and she has ridden it three times. First time she went out she dropped it in the grass but it rode fine around the neighborhood. She said she got it up to 45 on the main street before coming home. She rode another time around the neighborhood...

I am confused about the gear shifting in Ninja 300 SE. While i am riding i am shift gear as below : Gear : Km/Hr 1st : 0-10 2nd : 10-20 3rd : 20-40 4th : 40-50 5th : 50-55 6th : 55-60 is it hurting it? when i need to shift the Gear according to speed pr RPM?