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Devaux Tungsten Nymph Fly JBNT40

Manufacturer: Devaux
Devaux Tungsten Nymph Flies JBNT40 – effectiveness and realism for fly fishing
SKU: DVX-JBNT40H09-GROUP
GTIN: 3700087135516
3.10 CHF incl tax
ReferenceModèleQuantitéTailleStock quantityAvailabilityPrice
DVX-JBNT40H09
JBNT 401H090
To order - lead times vary according to supplier
3.10 CHF
DVX-JBNT40H11
JBNT 401H110
To order - lead times vary according to supplier
3.10 CHF
DVX-JBNT40H13
JBNT 401H130
To order - lead times vary according to supplier
3.10 CHF
DVX-JBNT40H15
JBNT 401H150
To order - lead times vary according to supplier
3.10 CHF
Devaux Tungsten Nymph Flies JBNT40: excellence for fly fishing. Designed to appeal to passionate anglers seeking effectiveness and realism, these high-quality nymphs embody Devaux’s innovation and expertise. Offering the perfect balance of performance and durability, they are a top choice for catching the wariest salmonids in rivers and reservoirs.

Technical features
  • Nymph tied on an ultra-sharp forged steel hook
  • High-density tungsten bead for rapid, natural sink rate
  • Finely worked body to enhance realism and subtlety
  • Natural dubbing and synthetic fibers for an authentic presentation
  • Suitable for both fast water and slow-water fishing
  • Careful finishing ensures long life even after many sessions


Benefits and key strengths
With the JBNT40 tungsten nymphs, every detail is designed to maximize your fly-fishing success rate. The tungsten head provides superior density, ideal for reaching deep seams where trout and grayling hold. Their expert tying guarantees a natural presentation that fools even the most cautious fish. Highly durable, they withstand the toughest fights and remain effective outing after outing. The choice of materials and shape delivers unmatched realism, even in clear water or under heavy fishing pressure. JBNT40’s versatility makes it an asset in all types of waters and conditions throughout the season.

Usage tips and recommended setups
To exploit the full potential of this nymph, pair it with a fine tippet to ensure a natural presentation. Using a Spanish-style nymphing technique (nymph on the dropper line) enhances its effectiveness, especially on educated fish. Ideal for natural drift, the JBNT40 pairs perfectly with a tungsten jig head or on a long leader setup. Its profile also works well as a dropper or on a dropper rig in nymph rigs. To increase strikes, favor subtle animation and target deep currents or vegetated margins where fish hide.

Testimonials or expert opinions
"Having fished trout in rivers for over twenty years, I had the chance to test the JBNT40 as soon as it was released in 2025. Its effectiveness on wary fish amazed me: fast sink, natural take, and consistent results regardless of conditions. It has become a staple in my fly box!" – Gilles, experienced angler

FAQ and additional information
1. Is the JBNT40 suitable for beginners?
Yes, its robust tying and ease of use help beginners gain confidence quickly and progress.

2. Should it be paired with a specific line?
It works well with floating lines as well as intermediate lines, depending on the desired fishing depth.

3. Is it effective year-round?
Its design allows it to be fished from the start to the end of the season, in rivers or reservoirs, whenever salmonids are holding near the bottom.

Trust the Devaux JBNT40 nymph to take on your fishing challenges and boost your results across all your favorite waters!