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The knobs from SLP Works, RCS, and Megabass are designed exclusively for DAIWA Reels with Shaft Type S. Therefore, they fit cleanly and without adjustments only on corresponding Daiwa handles.
The reason is simple, as the diameter and design of the handle shafts differ, causing the knobs not to fit correctly on Shimano or Gomexus.
If you are one of those who like to go a bit further, there is still a possibility. With our in-house
RL-TNG Carbon Handles
you can also use SLP Works, RCS, and Megabass knobs on other setups.
Note: This solution is aimed at experienced users, as here you leave the standard range and consciously move towards individual tuning.
The right crank knob (knob) significantly influences the grip feel, control, and comfort while fishing. Depending on the fishing technique, reel size, and personal preference, a different knob may be more suitable.
Knob size is usually specified by the diameter at the thickest point – not by the length. This diameter determines how much contact area your hand has with the knob.
Typical use: BFS, finesse, ultralight baitcasters
Typical use: allround baitcasters, zander, perch, pike
Typical use: pike, larger lures, stronger reels
Typical use: bigbait, large swimbaits, saltwater
Basically, larger knobs can also be mounted on smaller reels as long as the fitting matches. Technically, this is often possible.
However, you should pay attention to choosing a knob size that makes sense for the reel. A very large or heavy knob can significantly accelerate the crank due to its own weight and the resulting centrifugal force, more than some light reels are designed for.
Especially with very light baitcaster reels, BFS reels, or finely built gearboxes, a knob that is too large can increase the load on the mechanism. In the worst case, this can lead to more wear or even damage to the gearbox over time.
Therefore: just because a knob can be mounted does not automatically make it the best choice for the respective setup. For small and light reels, it is advisable to opt for light and appropriately sized knobs.
Here is a quick guide to which size fits which setup:
Ultimately, choosing the right knob is always a matter of personal grip feel. Many anglers prefer larger knobs for more comfort, while smaller knobs offer more direct feedback from the reel.
You know the problem: you want to adjust or replace your Handle Knob Caps, and nothing fits quite right? With the Special Knob Cap Wrench for Millionaire, RYOGA, KOHGA, and Emeraldas, the hassle is over. This tool is a real must-have for anyone who values precise work on their Daiwa Reels – and wants to save their nerves in the process.

This original Daiwa tool was specially designed to safely and easily remove the knob caps of certain Daiwa models. No guessing, no scratches, no frustration – just insert, turn, and done. The outstanding fit makes it indispensable for anyone who wants to customize or maintain their reels.
The Special Knob Cap Wrench is compatible with a variety of Daiwa models and handle knobs:
Reel models:
Knob models:
Using it is child's play:
This small tool not only saves you time but also ensures your valuable Daiwa reels stay flawless. No scratches, no damaged parts – just clean, precise work. Perfect for tuning fans and maintenance pros alike.

With the Special Knob Cap Wrench, you have the ideal tool to perfectly customize your Daiwa reels and knobs – because you simply don’t do things halfway. 🛠️🎣