Named after WTB Athlete Nathan Riddle, the Riddler hungers for speed yet hangs on in the corners, remaining composed and unflappable - just like Nathan Riddle’s riding style. Large, supported toothy side knobs and densely packed, low center tread make the Riddler a hit beyond the gravity-enthused as multiple widths and wheel sizes also keep the cross country, weight conscious happy with a lightweight do-it-all.