Trout reels vary in frame material and each serves a different purpose. Aluminum framed reels are great for durability but suffer in weight. They are usually heavier and pair better with longer rods. Other reel frames like graphite are lightweight and are great trout options. They are not as durable as aluminum frames but sometimes the comfort of the setup is more important when you are casting all day. If you want the best of both worlds, full carbon frames are available like the Shimano Vanford. Just know you’ll pay a pretty penny for one.