Shane is Ryan Sheckler's younger brother (and older brother to Kane). Like Ryan, he's a typical teenage boy who enjoys going to school, wrestling, hanging out with his friends and, yes, skateboarding in his free time.
Shane and Ryan have a really close relationship, but while Shane admires his older brother, he's made a conscious effort to not live in Ryan's enormous shadow. Shane is doing a great job as the middle brother realizing he too is a roll model for Kane.
Despite not wanting to follow in Ryan's footsteps, Shane is becoming a fantastic skater in his own right. In fact, Ryan is so impressed with his younger brother's skills that he thinks Shane has the potential to make skateboarding a career.