The Stradic CI4 2500F offers all the advantages of its unique component material in one of the most popular spinning reel sizes. Shimano knows that finesse fishing - light line, light rod and precise control - is often the key to unlocking the bass bite whether it's a tournament situation or a day out on the local pond. Gaining that control is accomplished with the construction advantage of the Stradic CI4 reels. CI4 is reinforced Carbon Fiber. Because it does not contain metal, it is impervious to rust. CI4 is over one-and-a-half times stronger than normal XGT7 graphite and is over 20-percent lighter. As a result of its strength and weight, Shimano can create an extremely lightweight reel with very precise tolerances. Add in Paladin Gear Durability Enhancement and Propulsion Line Management System and the Stradic CI4 reels make it easy to trigger bass to bite with the right presentation.