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Avail Shimano 21 SLX BFS Microcast Spool

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Regular price 89.95 €
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GPSR Information

Name: RL-Angelrollentuning

Address: Pfirsichweg 4

Email: info@angelrollentuning.de

Website: https://angelrollentuning.de/

European Manufacturer: No

Name: Riewoldt-Liehr

Address: Pfirsichweg 4

Email: info@angelrollentuning.de

Website: https://angelrollentuning.de/

Name: Riewoldt-Liehr

Address: Pfirsichweg 4

Email: info@angelrollentuning.de

Website: https://angelrollentuning.de/

Avail Microcast Spool for Shimano 21 SLX BFS – Your upgrade for ultra-light casts!

🎣 For finesse fanatics & precision freaks!

Welcome to the Champions League of Bait Finesse Performance! 🚀 With the Avail Microcast Spool you transform your Shimano 21 SLX BFS & 17 Scorpion BFS into a high-precision machine for light lures and perfect casts.

What does it bring you? Butter-smooth casts with light jigs, weightless rigs or finesse setups – no jerking, no "Come on, fly already!" frustration. This spool simply makes your life better.


🔧 Two spool depths – choose your setup!

21SLX15R (1.5 mm spool depth) – Ideal for 4-6 lb fluorocarbon or PE lines
💡 Perfect for: Drop shot, Neko rig, ultralight hardbaits

21SLX29R (2.9 mm spool depth) – For 10-12 lb lines & slightly heavier rigs
💡 Perfect for: Texas rigs (3.5-9 g), small jigs, chatterbaits

➡️ In short: The flatter the spool, the lighter the line and finer the tackle. The deeper the spool, the more line capacity for all-round setups.


🔧 Technical data – tuning in perfection!

  • Material:
    • Spool: Super Duralumin (anodized) – ultralight & super stable
    • Axle: Stainless steel – for maximum durability
  • Compatible reels:
    • Shimano 21 SLX BFS (HG/XG, Left & Right)
    • Shimano 17 Scorpion BFS (HG/XG, Left & Right)
  • Ball bearing size: 8 mm x 4 mm x 3 mm

Weight – Where every gram counts!

Spool Weight Ratio to original spool
21SLX15R 8.1 g 91,0 %
21SLX29R 8.4 g 94,4 %
Original spool (21 SLX BFS) 8.9 g 100 %

📌 What does that mean for you?
🔹 Less weight = faster rotation = silky smooth casts
🔹 More sensitivity = perfect lure feel
🔹 Lower starting inertia = even 1 g lures fly effortlessly


🎣 Line capacity – Which one suits you?

Spool PE 0.6 PE 0.8
21SLX15R 80 m -
21SLX29R - 130 m
Original spool 130 m 130 m

📌 Important to know:

  • Actual capacity may vary depending on line type (nylon, fluorocarbon, PE) & winding tension.
  • If you fish PE: Use the 15R for ultra-light techniques, the 29R for all-round finesse.

🚀 Why the Avail Microcast Spool 21 SLX BFS?

Ideal for bait finesse – effortlessly cast ultra-light lures!
Lighter than the original spool – more control, better performance!
Perfect brake control thanks to magnet upgrade!
Two spool depths – You decide your setup!
Plug & Play – Install, cast, enjoy!


🔧 Installation & important tips

🛠 Additional magnets recommended for model 21SLX15R!

  • Due to the flat design, the brake sits further away, which leads to less braking effect.
  • Solution? Simply add 4 x 1 mm additional magnets (up to 8 pieces, sold separately) onto the existing ones – and the finesse dream setup is ready!

A hand proudly shows you an Avail Shimano 21 SLX BFS Microcast Spool – the black and red design really pops, and the open center proves: Finest Avail precision is inside! Perfect for tuning your Bait Finesse reel and for all tackle nerds who love stylish, lightweight angler upgrades.

Avoid "thumbing" on the spool edge!

  • Pressing directly on the edge can damage the anodizing.
  • Instead, always stop on the winding surface!

Spool line with care!

  • Especially do not wind too tight with nylon – otherwise there will be unsightly pressure marks.

Check & oil ball bearings!

  • Factory treated with rust protection greasedegrease & lightly oil before first use for perfect performance!

🔥 Conclusion – Is the Microcast Spool the upgrade for you?

👑 If you…
want to cast ultralight lures without your reel acting up
want a lighter, more precise casting performance
want to optimize your brake control
looking for a perfectly tuned finesse spool

🎣 Then the Avail Microcast Spool 21 SLX BFS is your perfect tuning!

🔧 Turn your SLX BFS into a casting machine – and enjoy the Bait Finesse experience in perfection! 🎣🔥

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