Ultra-lightweight Box One Carbon BMX Handlebars are made using advanced carbon fiber technology Designed for smaller BMX racers, they feature a unique profile that increases stiffness and strength, while keeping the weight extremely low Box One Carbon Handlebars are designed for BMX racing only 3k carbon fiber weave 22.2mm 23` 4.5` 2? 7? Carbon 3k BMX CarbonUPC/EAN/GTIN: 616043830469