Well you could to either...
If you are having oranges then brush your teeth after because it tastes like... really bad...
Also if you brush after then you can get more food out of your teeth so your smile is better...
I hope this helps you!
Well you could go and talk to your local bike shop and see what they think.
Also if you are going to ride it a lot or be in a triathlon then but a specific triathlon bike.
Even though they are 2000 dollars, at least, they are still amazing!