well for sure you'll want a decent reaction stat with some decent skills in pilot ground, probably a specialisation in bikes too for the extra dice.
if you want him to be really really good biker, then adept or rigger is best way to build him, but looks like you just want him to be slightly better than the average and worse than the best.
tbh, there are a number of ways you could build this guy, but to me from your description you basically want a street sam who can ride a bit better than most.
dead easy to do!!