Nitro Gear & Axle’s Pro Series SXS Axles are up to 30% stronger than a stock setup. The Nitro Team have designed and developed this powersports specific axle to deliver top of the line quality and performance while keeping you within budget. They are manufactured with 4340 ultra-high strength steel bars and feature heat-treated CV components for maximum strength and durability. All Pro Series SXS axles are fully assembled for an easy installation. The Nitro brand has been a staple for gears and axles, and we back that legacy by including a