Euro NymphsRoza's French Bomb
Roza's French Bomb is a simple yet effective French-style euro nymph featuring a peacock Ice Dub body with a fluorescent pink hot spot. Its slim profile and tungsten jig bead ensure quick descent to the feeding zone. A reliable competition pattern that performs consistently across various water conditions.
Year Round
Beginner
Trout

Overview
Designed by Roza for European competition fishing, this pattern exemplifies the French nymphing philosophy of simplicity and effectiveness. The fluorescent pink hot spot provides a visual trigger point that often induces strikes in pressured waters. Ice Dub creates excellent movement in the water while maintaining a slim profile. The pattern can be tied in various sizes and colors to match different conditions.
Pattern Characteristics
Materials
Hook: Umpqua XC400BL-BN, #14
Thread: UTC Ultrathread 70 Denier, black
Bead: Fulling Mill Tungsten Jig Bead, 3.5mm, silver
Tail: Strung Chinese saddle hackle, black
Body: Ice Dub, peacock
Hot Spot: Ice Dub, fluorescent shell pink
Fishing Tips
Season
Effective year-round as a searching pattern, with particular success during spring and fall mayfly activity when trout are keyed in on subsurface nymphs. Works well in winter tailwaters where Baetis are active and during summer months in high-altitude streams.
Presentation
Use tight-line euro nymphing techniques with a high stick presentation. Lead the fly downstream while maintaining contact with minimal slack. The tungsten jig bead helps the fly dive quickly and ride hook-point up to avoid snags. Short, controlled drifts work best in pocket water and runs.
When to Use
Most productive when fish are feeding on subsurface mayfly nymphs before or after visible hatches. Excels in overcast conditions and during periods of increased water flow. Use as a searching pattern when no specific hatch is evident. Effective in both pressured and unpressured waters due to its subtle yet triggering profile.
Water Type
Designed for moving water applications, particularly riffles, runs, and pocket water in freestone streams. Works well in tailwaters and spring creeks where trout are selective. Most effective in water depths of 2-6 feet where euro nymphing techniques excel. The slim profile cuts through current efficiently.
Rigging Suggestions
Fish as the point fly in a euro nymphing rig with 2X-4X tippet depending on water clarity and fish size. Pair with a lighter pattern as a dropper 12-18 inches above. Use a sighter section in your leader for detecting subtle takes. No additional weight typically needed due to tungsten bead, but split shot can be added for deeper water.
Visibility & Floatation
Sinks quickly due to 3.5mm tungsten jig bead, reaching the strike zone rapidly in fast currents. The peacock Ice Dub body provides subtle flash and movement without overwhelming fish in clear water. Pink hot spot is highly visible to both fish and angler, aiding in strike detection. Jig hook design keeps the fly riding upright and reduces snags.