Available Shimano 23 Calcutta Conquest BFS Microcast Spool – Ultra-light Casting Tuning 🎣

Do you want to turn your Shimano 23 Calcutta Conquest BFS into the ultimate BFS casting machine? Then the Avail Microcast spool is your must-have! This high-performance tuning spool, made from extra-super duralumin, drastically reduces weight and ensures minimal inertia, precise casting control, and buttery smooth line release – perfect for ultra-light lures and delicate presentations.

With a shallower spool depth and optimized line capacity, the Microcast spool casts light lures shallower, farther, and more precisely. Backlashes are reduced, while your lure smoothly lands on the spot – ideal for trout in mountain streams or Ajing for mackerel with PE line.

Available in three elegant colors (Black, Gunmetal, Champagne Gold), this spool not only looks fantastic but also delivers absolute top performance.

Why do you need the Avail Microcast spool?

✔ Noticeable weight reduction: Only 5.0 g instead of 6.6 g with the original spool – for lightning-fast rotation
✔ Optimized for ultra-light lures: Perfect for Trout, Ajing & finesse techniques
✔ Less backlash, more control: Shallow spool depth for smoother line release
✔ High-quality material: Extra-super duralumin for maximum stability at minimal weight
✔ Necessary Magnet Upgrade: Requires 8 additional magnets (MAG φ4x1mm set, sold separately) for optimal brake adjustment

"In contrast to the original spool, the Microcast spool ensures effortless, precise casts with the finest lures – a game changer for all BFS fans!"

Technical Data & Differences to the Original Coil

📏 Dimensions & Design:

• Outer diameter: 29 mm
• Spool surface for cord: 26 mm (instead of 23 mm on the original spool)
• Coil depth: 1.6 mm (instead of 3.0 mm)

⚖ Weight & Material:

• Material: Extra-super Duralumin (hard anodized)
• Weight: 5.0 g (instead of 6.6 g with the original spool)

🎣 Line Capacity:

📢 Notes on cord capacity:

• Optimal filling quantity: 60–80 % of the specified capacity for best performance
• Maximum filling (“C-surface”) can increase backlash risks.

Important Notes on Usage

🔹 Requires additional magnets:
Since the spool depth is shallower, the spool is positioned further away from the original magnet, which reduces the braking force. Therefore, 8 additional magnets (MAG φ4x1mm) need to be installed to optimally adjust the brake.

🔹 Installation of the magnets:

• Set brake wheel to MAX
• Place 8 additional neodymium magnets (φ4×1mm) with alternating polarity (+/-) on the existing magnets.
• Use magnets only with non-magnetic tweezers to avoid damage to the ball bearings.

🔹 Noise change due to O-ring omission:

• The coil was designed without O-ring for weight reasons.
• This may lead to a slightly increased drive noise – not a defect, but due to construction.

🔹 Gentle handling of the spool:

• Avoid thumb pressure on the spool edge, as the anodizing can wear off due to friction.
• Winding nylon line only with loose tension to prevent damage
• Do not pull on the spool when removing the hook to avoid deformation.

🔹 Storage & Care:

• Ball bearings are factory-treated with rust protection grease – degrease and oil before first use.
• Attention when changing the bearing: The Microcast spool uses a different bearing size (8x4x3 mm) than the original spool (8x3x2.5 mm)

🔹 String Measurement & Compatibility:

• Thin strings can get caught between the spool & frame – Be careful when choosing the string thickness

Assembly of the Avail Shimano 23 Calcutta Conquest BFS Microcast Spool

1️⃣ Push the return lever of the 23 Calcutta Conquest BFS back
2️⃣ Remove & detach side part ("Main Body B")
3️⃣ Remove the original spool & insert the new spool (pay attention to alignment!)
4️⃣ Install additional magnets (MAG φ4×1mm)
5️⃣ Reinsert side panel & push lever forward
6️⃣ Fine-tune the braking force after the first throw

⚠ Tip for spool alignment: If the side panel cannot be closed, the spool might be tilted too much towards the palming side – simply loosen the mechanical brake a bit.

Conclusion: The ultimate BFS upgrade for your Shimano 23 Calcutta Conquest BFS!

✅ 75 % of the original weight – ultra-light performance for BFS casts
✅ Perfect for precise bait presentation & controlled line release
✅ Requires magnet upgrade for optimal braking performance
✅ Available in Black, Gunmetal & Champagne Gold

🔥 Maximize the performance of your Shimano 23 Calcutta Conquest BFS – upgrade now! 🔥