In this article, ultralight spinning reels are described as those that weigh less than 8 ounces. The Shimano IX is reported as being 8.4 ounces in weight. It is, however, a tiny reel that is used to capture trout, crappie, perch, sunfish, and bluegill. The Penn Battle II 1000 is an excellent saltwater spinning reel that weights 8.1 ounces, little more than 8 ounces.