HOLY CHRIST ON A CRUTCH!
Check your tire pressure!
I can not even count how many times i have seen two people on a tiny 50cc scooter and the tire pressure was so low in the tires the wheel frame is almost dragging on the concrete.
Not only are you endangering your life and mine, your friend on the back of your rice rocket is not going to fare so well either when you lose control of your bike because the tire has become virtually useless because you can not do a simple maintenance check before you ride!
Really though, please check your tire pressure! It will also help your bike preform and steer better. Steering is a very, very important function you want your soy sprocket's to possess.
Also, a bike helmet is not going to work out to well in your favor if you wreck on your scooter/moped. There is a reason they call them BIKE helmets.
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