Devaux Tungsten Nymph Fly JBNT31-A

Devaux Tungsten Nymph Fly JBNT31-A stands out as an essential reference in river fly fishing. Designed to meet the demands of passionate anglers, this carefully tied nymph is suitable for both experienced hobbyists and experts seeking performance and efficiency across all waters. Its tungsten construction ensures a fast descent through the water column, maximizing chances to catch even the wariest fish. With the Devaux JBNT31-A nymph, benefit from a tool thought through to the smallest detail, adapted to the varied conditions of French and European rivers.

Technical features of the Devaux JBNT31-A Nymph :

• High-quality design signed Devaux


• Tungsten bead head for optimal density


• Hook selected for strength and effective penetration


• Premium materials ensuring durability and realism


• Pattern studied for a natural, enticing swim


• Suitable for all skill levels, from beginners to advanced anglers


• Optimized for rivers, streams and small to medium watercourses

Advantages and strengths :
Using the Devaux JBNT31-A provides multiple assets to increase your success rate. Its tungsten bead guarantees a rapid, precise sink, allowing effective prospecting of deep lies on the first pass. The natural action of this nymph, combined with fine tying and quality materials, fools the vigilance of the most educated fish. Its remarkable realism perfectly imitates the natural prey of trout and grayling, promoting direct takes even in difficult conditions. Built to last, the robustness of its tying ensures you can handle multiple catches without loss of performance.

Usage tips and recommended rigs :
To maximize the JBNT31-A's potential, use it preferably on the point of a fluorocarbon tippet, ideally 0.12–0.16 mm (12–16/100), to preserve presentation stealth. Its weight makes it ideal for Spanish nymphing or traditional indicator nymphing. Prefer a simple bead-head rig to descend quickly in main currents or to probe pools.
Adapt drift speed according to river morphology: in fast water, let the tungsten do the work to immediately reach the correct depth, while in calmer water, add slight wrist action to provoke strikes. Inspect the hook between each catch to ensure optimal penetration.

Expert angler review (spring 2025) :
"With the Devaux JBNT31-A, I was able to land wary trout on heavily fished beats. Its fast sink rate and incredible realism give it a clear advantage over other imitations on the market. A true revolution for anyone wanting to perform with nymphs on technical rivers!" (A. Duval, fishing guide, May 2025)

FAQ and additional information :
1. Which fish is the JBNT31-A recommended for?
This fly was specifically designed to target trout and grayling, but it also proves deadly on other river salmonids.
2. Can this nymph be used in reservoirs?
Although designed primarily for rivers, some anglers report excellent results in reservoirs when adjusting retrieval speed.
3. How to extend the nymph's lifespan?
Rinse quickly in fresh water after each session. Air dry to preserve the hook steel and the tungsten's shine.

Choose the Devaux JBNT31-A Tungsten Nymph Fly to combine technology, robustness and effectiveness and ensure your best results at the water's edge.