ZR INNOVATION The ZR’s sleek Mono-Tube Frame, with 1.25″ tubing, is 20% lighter than its predecessor but retains titanium’s 44% strength advantage over 7000 series aluminum. Swept Caster Arm with bullet caster housing reduces weight and adds yet more style. Zero Play Camber Plugs give a much tighter feel to the chair like sport suspension in a car. CNC machined from billet aluminum to the highest tolerances, they remove any side to side movement from the rear wheels. TiShaft Back Release Bar makes folding and unfolding the backrest easy from any angle. ZR OPTIONS The ZR Black Edition brings you the allure of black combined with the power of TiLite titanium. VIEW TILITE BLACK EDITIONS Curved Backrest Tube enhances the clean look. Patented Slipstream Single-Sided Fork with integrated bumper combines elegance and practicality. Performance 5-Spoke Soft Roll Wheel weighs just 1.6 ounces. TiLite chairs feature Tattooed Finishes. These are not stickers. These are real tattoos permanently imprinted onto the finish of your new titanium or aluminum TiLite chair frame!