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Compatible Reels
Compatibility – SLP Works, RCS & Megabass Knobs
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.
- Fits: DAIWA Reels with Shaft Type S
- Not compatible: Original Shimano handles
- Not compatible: Gomexus 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.
Special solution for tuning fans 😏
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.
- Make compatible, allowing the knobs to be used on Shimano Reels as well
- More tuning options, because you can freely combine handle and knob
- Designed for tinkerers, and that’s where it gets really interesting
Note: This solution is aimed at experienced users, as here you leave the standard range and consciously move towards individual tuning.
Guide - Which Gear Shift Knob Fits My Setup?
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.
Knob Size – The Contact Point to the Reel
18–20 mm – BFS & Ultralight
- Very direct grip feel
- High control with light lures
- Ideal for BFS reels and ultralight setups
- Perfect for precise fishing
Typical use: BFS, finesse, ultralight baitcasters
21–24 mm – Allround
- Good mix of comfort and control
- Very versatile
- Comfortable even during longer fishing sessions
Typical use: allround baitcasters, zander, perch, pike
25–27 mm – Large Grip
- More grip surface
- Better control with higher resistance
- Comfortable when fighting larger fish
Typical use: pike, larger lures, stronger reels
30–40 mm – Bigbait & Saltwater
- Very large grip surface
- Maximum control with high lure resistance
- Relieves hand and forearm
Typical use: bigbait, large swimbaits, saltwater
Important Note on Knob Size
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.
Knob Material – Differences in Grip Feel
EVA
- Very light
- Non-slip
- Water-resistant
- Very comfortable for fishing
Rubber
- Very high grip
- Very controllable when wet
- Comfortable during the fight
Silicone
- Very soft and grippy
- Pleasant surface
- Very comfortable for longer sessions
TPE (Thermoplastic Elastomer)
- Soft, pleasant surface
- Very good damping
- High comfort
Cork
- Natural grip feel
- Very light
- Warm in the hand
- Classic look
Wood
- Very individual appearance
- Natural feeling
- Slightly firmer than EVA or TPE
Carbon
- Extremely light
- Modern design
- Very direct feedback
Aluminum
- Very robust
- Precisely CNC machined
- Cool, direct grip feel
- Very durable
The Right Knob Size for Your Setup
Here is a quick guide to which size fits which setup:
- BFS & Ultralight: 18–20 mm
- Allround Baitcaster: 21–24 mm
- Large Lures / Pike: 25–27 mm
- Bigbait & Saltwater: 30–40 mm
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.
SLP Works I-Shaped Zaion Knob
SLP Works I-Shaped Zaion Knob
The SLP Works I-Shaped Zaion Knob is exactly the upgrade you feel immediately with the first turn, as less weight, more feedback, and an extremely direct tactile feel come together perfectly here. Thanks to the ZAION material, the knob remains stable yet ultra-light, giving you more control over time. 😎
- ZAION Carbon Material, making it extremely light and torsion-resistant, and significantly more durable than classic plastic knobs.
- Only about 4.1 g weight, keeping your setup sensitive and balanced while avoiding unnecessary mass.
- Sleek I Shape design, providing direct contact and more feel when cranking, which makes all the difference in precise control.
Daiwa Zaion Knob Upgrade – why it’s worth it
Many anglers underestimate how much a knob affects the overall feel of the reel. Especially with inexpensive or older setups, this direct feedback is often missing. With this SLP Works Zaion Knob, you get exactly that, as the material transmits movements cleanly while the low weight doesn’t slow down your setup.
- ✅ More sensitivity when cranking and guiding
- ✅ Noticeably more direct contact with the reel
- ✅ Lightweight upgrade without loss of balance
- ✅ High-quality SLP Works look
I Shape Zaion Knob – Material & Features
ZAION is a carbon composite material developed by Daiwa that is especially light, extremely stable, and corrosion-resistant. This makes the knob suitable for demanding use, while the slimmer design compared to classic flat knobs ensures more precise handling.
- Light & strong, for maximum performance without added weight
- Corrosion-resistant, so it can be used easily in saltwater
- Shape-stable, ensuring consistent and clean power transmission
SLP Works I-Shaped Zaion Knob – Dimensions & Details
- Weight, approx. 4.1 g
- Length, approx. 35.9 mm
- Max. diameter, approx. 11.0 mm
- Quantity, 1 piece
- Note, delivery without Knob Cap
Daiwa I Shape Knob – Compatibility
- Fits: many DAIWA baitcasting and spinning reels as well as Avail handles.
- Important: designed for handle shafts with 2 bearings per knob.
- Not compatible: Abu Garcia handles, due to different shaft diameter.
- Note: very old models, over 10 years, may differ.
Immediately compatible with current Daiwa setups, no experiments needed.
Accessories for SLP Works I-Shaped Zaion Knob
For a clean setup, you should keep two things in mind right away, as the knob comes without a cap and only runs smoothly with good bearings. Therefore, we recommend the matching Knob Cap Daiwa Zaion to ensure everything fits neatly and looks good.
Additionally, the Core Knob Bearing Set, 4 pieces is worthwhile because this is often where the most potential remains untapped.
- Clean finish, the matching cap ensures everything sits securely and neatly
- Smoother operation, significantly less resistance thanks to bearings
- More running smoothness, because play and friction are reduced
SLP Works Zaion Knob – Installation & Quick Guide
- Carefully disassemble the knob and sort all parts cleanly.
- Insert or add the cap and bearings as needed.
- Assemble everything without tension and test the operation immediately.
Pro tip: Always tighten screws gently, as too much pressure slows down the operation. Especially lightweight ZAION knobs react immediately to this.
Technical Highlights – Zaion Knob Upgrade
- Carbon composite material, for extreme stability at minimal weight.
- Sleek design, for precise and direct handling.
- High sensitivity, for maximum control with every crank movement.
Conclusion – SLP Works I-Shaped Zaion Knob
If you want less weight, more feel, and a clean, direct tactile experience, then the SLP Works I-Shaped Zaion Knob is exactly your thing. Combined with a cap and bearings, you get the maximum out of it, and that’s when your reel just feels right. 🎣