You get maximum strength at minimum weight with this precision CNC-machined sprocket. Engineered from certified 7075-T6 Ergal aviation-grade aluminum alloy, it&';s built to handle extreme pro-race conditions while keeping your machine light and responsive. Features 7075-T6 Ergal aviation-grade aluminum delivers the strength-to-weight ratio you need for aggressive riding Precision CNC machining ensures tight tolerances and smooth power transfer to the rear wheel Computer-designed and controlled metal cutting maximizes durability under demanding conditions Heat-treated and hand-finished to meet rigorous quality standards for consistent performance Pro-race engineering withstands the punishment of high-stress track sessions