The Momentum LT reel series is the strongest and most dependable big game fly reel on the water today. The drag system is based on Carbon Fiber technology, chosen because of its stiffness, strength, heat resistance, shock-dampening capabilities and infinite fatigue resistance. The Carbon Fiber used in the Momentum LT drag system is STRONG, measuring 700ksi (700,000 pounds of force per square inch) which is more than 10x the tensile strength of the aluminum frame that carries it.