The Stay Strong Chevron Expert Alloy BMX Race Handlebars-Black are tough yet lightweight bars made from strong alloy with proven geometry and specs. Constructed from 6061 aluminum alloy that features multi-butted variable thickness for extra strength. This two-piece handlebar has a 4.5″ rise, 2-degree upsweep and 8-degree backsweep for comfortable control and weighs just 382g.