Evo Handlebars - Oversize 1-1/8. The EVO bar is Pro Taper's top of the line bar without a crossbar. Oversize diameter handlebars, without cross bars, were invented and patented by Pro Taper. This design allows the bar to flex more and absorb impacts better than other bars offering the rider more comfort and less fatigue without sacrificing bar strength. The EVO handlebar utilizes a computer profiled 4 mm wall design and is up to 25% lighter than other bars yet up to 45% stronger. Made with aerospace-grade 2050 aluminum. Manufactured to exact rise and pullback specifications and tolerances to provide a consistent and accurate feel. Independent lab tests show that the EVO handlebars outlast every other handlebar on the market in fatigue life. 4 mm computer-profiled wall design. Unique inner tube coating to resist corrosion. 1/4" cut guides for precise modification.