My son, 17 just graduated high school.

What would be a better gift? He is very interested in playing guitar and biking;

A New Acoustic Guitar /1

A Road Bike (Race bike) /2

What do you think?

As a Mom of once teenage boys ,I would opt for the guitar.
It is safer and the possibilities for entertainment are endless.

Perhaps a nice computer... he is going off to college right? Call me old fashioned, but I would go for the more practical gift.