Q. Red or Blackwhich one to choose - Apache RR 310?

I would say Black As Black is always in trend , Red looks good until the bike is new. When the bike is 1 or 2 years old it won't look that good. P.S :- I own a Black one

I am fond of RED and it depends on induvidual taste

It's depend upon you. But Red is always a luxury and red will be more interactive you will get more attention. i have also Red one.