Shimano Thunnus CI4 Spinning ReelsThe Shimano Thunnus CI4 Spinning Reels are Baitrunners taken to the next level! While the Thunnus and the Baitrunner share the same platform, the Thunnus CI4 is a significantly better reel. The Thunnus body is constructed of Shimano's carbon fiber material, and the spool is aluminum making them very light. These reels feature the Paladin Gear System and seven ball bearings making them extremely smooth. The baitrunner feature works extremely well and