Your cart (0)
Your shopping cart is empty
Taxes are included; shipping costs are calculated at checkout.
Compatible reels
Spool Bearing Differences – Core vs Edge vs Apex Compared
Spool Bearing Differences – Core vs Edge vs Apex Compared
Our spool bearings differ in material composition, ball quality, cage system, ABEC precision class, and optimal tuning for your casting weight. Each class is designed for a specific application. The decisive factor is not just the ABEC rating, but the entire construction and its tuning to your setup.
Apex – ABEC 9 with S30 Ceramic Balls and PEEK Ribbon Cage
Apex bearings are our uncompromising high-performance option. They consist of ABEC 9 precision-made stainless steel rings, equipped with S30 ceramic balls and a PEEK (Polyether Ether Ketone) ribbon cage.
S30 ceramic balls enable extremely low friction and very high speeds. The PEEK ribbon retainer is a high-performance cage that ensures stability, temperature resistance, and reliable ball guidance at very high speeds.
- ABEC 9 precision standard
- S30 ceramic balls for maximum rotational pleasure
- PEEK ribbon cage for stability at high speeds & minimal friction
- Very fast spool acceleration
Thanks to this design, the spool of your baitcasting reel starts very quickly and reaches extremely high speeds, especially in the lower casting weight range.
Sweet spot casting weight: 2 to 60 g
If you mostly fish well above this range, a slightly more robustly tuned design makes sense. In this case, switching to the Edge class is recommended.
Edge – ABEC 9 Hybrid Ceramic Bearings with S25 Balls
Edge bearings are also based on an ABEC 9 precision standard. They use S25 ceramic balls combined with precision-made steel rings and a Japanese ribbon retainer.
Compared to Apex, Edge is tuned to be a bit more versatile. The design offers high speed capability combined with more mechanical stability for a broader range of applications.
- ABEC 9 precision standard
- S25 ceramic balls for high speeds
- Japanese ribbon retainer for stable ball guidance
- Balanced performance tuning
Edge bearings are available in two variants:
- With Orange Seal: Additional protection against dirt and moisture
- Without Seal: Minimal resistance for maximum rotational pleasure
Sweet spot casting weight: 5 to 100 g
If your setup regularly exceeds this range significantly, the Core class is the technically more suitable choice.
Core – ABEC 5 Stainless Steel Bearings for High Load
Core bearings consist of ABEC 5 precision-made stainless steel bearings with a stable ball and cage construction. They are designed for durability, continuous use, and consistent performance.
ABEC 5 here does not mean lower quality but a more robust tuning compared to high-speed hybrid ceramic bearings.
- ABEC 5 precision standard
- Robust stainless steel construction
- High mechanical load capacity
- Consistent performance under load
Sweet spot casting weight: 8 g to over 200 g
The Casting Weight Decides
All our spool bearings are high-quality manufactured and designed for high speeds. The crucial difference lies in the tuning to your actual lure spectrum.
Those who mostly fish very light lures benefit from maximum startup dynamics. Those covering a broader spectrum should choose a more versatile tuning. Those who consistently cast heavy should rely on robust stability.
The best performance arises when bearing class and casting weight match.
RL-TNG Ball Bearing Tuning Kit for Shimano Reels
RL-TNG Ball Bearing Tuning Kit for Shimano Reels
RL-TNG Bearing Tuning Kit Shimano Reels – Contents & Benefits
The RL-TNG Bearing Tuning Kit Shimano Reels makes your baitcaster faster, quieter, and more durable. The ABEC 9 spool bearings start up lightning fast, while the stainless steel bearings provide stability. This makes your Shimano run freer and smoother – whether you're BFS fishing or heavy jigging.
- ABEC 9 spool bearings – faster start, resulting in longer casting distance and better lure control.
- Pinion and support bearings – smooth operation and less vibration, plus longer durability.
- Levelwind bearing – for clean line lay and no more jerking when retrieving.
Bearing Upgrade Shimano Reels – why it’s worth it
Many only replace one spool bearing. But full performance is only achieved when the spool, sideplate, and pinion work together. With this Shimano Bearing Kit, you get more control, more quietness, and a noticeably better casting feel.
- ✅ More distance thanks to freer spool rotation
- ✅ Less vibration and annoying noise
- ✅ Less effort when cranking, making fishing more relaxing
- ✅ More durability and less maintenance needed
Installation Guide – RL-TNG Bearing Tuning Kit Shimano Reels
- Open the sideplate and remove the spool.
- Check bearing positions, as they vary depending on the model.
- Replace and install bearings – resulting in perfect free spool and more speed.
Tip: You can fish the hybrid bearings dry for more speed or lightly oiled for more quietness. They can also be re-oiled at any time.
Technical Highlights – Shimano Bearing Kit
- 2x ABEC 9 spool bearings – ceramic hybrid for maximum free spool.
- 1x ABEC 9 pinion bearing – high speed for precise operation.
- 1x stainless steel pinion support – stabilizes the axle, reducing play.
- 1x stainless steel levelwind – even line lay and no jerking.
Compatibility – Shimano Reels Bearing Kit
- Fits: Curado, Chronarch, Metanium, Bantam, Aldebaran, and many other Shimano models.
Note: BFS variants may require different bearing sizes. Please check or contact us directly.
Accessories for Bearing Tuning Kit Shimano Reels
Pin on the spool? Then use the Pin Remover – safe, easy, and damage-free.
Conclusion – RL-TNG Bearing Tuning Kit Shimano Reels
More speed, smoother operation, and longer durability – turning your Shimano into a true high-speed tool. Plus, fishing becomes more relaxing because you need less effort and have more control.
Fits these reel models
Checked to fit 23 reel models. Each model page shows all tuning parts for exactly that reel.
Shimano (23 models)
- 25 Aldebaran DC
- 25 Curado M
- 24 Metanium DC
- 23 Curado M
- 23 Metanium
- 22 Bantam
- 22 Curado DC
- 22 Metanium Shallow Edition
- 21 Curado MGL 150
- 20 Curado K 300
- 20 Curado MGL K 70
- 20 Metanium
- 20 Metanium 150
- 18 Aldebaran MGL
- 18 Bantam MGL
- 18 Curado DC
- 18 Metanium DC
- 17 Chronarch MGL
- 17 Chronarch G
- 17 Curado K
- 16 Curado 70
- 16 Metanium MGL
- 16 Metanium MGL 150