IOS FACTORY D-System Drag Upgrade Kit for Daiwa TD-Model

The IOS D-system is a drag unit and custom parts that make the drag of Daiwa reels smoother and enable more effective hooking.

The aluminum machine-cut housing provides high-precision spool rotation, and the concept of the spool being supported by a high-precision bearing instead of a resin collar, which has unstable surface pressure, is a key factor in the stability of drag action. The concept of the spool being supported by a high-precision bearing instead of a plastic collar with unstable contact pressure, combined with the synergistic effect of the special felt developed for the D-System, enhances the stability of the drag action.
The drag spring has also been refined and fine-tuned to have a pleasant tone without impairing drag performance, and an adjustment shim is included to prevent uneven taper winding of the spool, making it compatible with a variety of reels.

Included thing
DSystem main unit, special stainless steel bearing, special drag spring, special felt.
Various adjustment shims, dedicated fixing rings, installation instructions (described in the package)