AMA and ASRA racer Dafan Zhang has opened a suspension tuning service: DafanZ Tuning in Upper Darby, PA (a suburb of Philadelphia). DafanZ Tuning focuses on the set up and tuning of both stock and aftermarket suspension components. Our company motto says it best, “Don’t let your bike be your limit”, as we strive to set up and tune your sportbike to its potential so it will not hinder your performance and ability on or off the racetrack. For years, Dafan has been providing various suspension services including trackside set up/support/tuning and cartridge re-valving. Dafan is an active AMA and ASRA racer, and is also a riding instructor at trackdays. His race and track experience translate to first hand knowledge of set up and tuning that can benefit club racers and trackday riders alike. For more information about DafanZ Tuning, please visit www.dafanztuning.com or call (610) 801-2029.