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RIO's King Splitsville Megaspinner - Mayfly Dry Fly

$3.68

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Description

RIO King Splitsville Megaspinner – Large Spinner Trout Fly The RIO King Splitsville Megaspinner is designed for trout that are keyed in on large spent mayflies after heavy hatches. While spinner falls are often associated with smaller flies, species like Hexagenia (Hex), Isonychia (Iso), and Green Drakes produce large spinners that trout will sip confidently when conditions line up. Built on Jonny King’s proven Splitsville Spinner platform, this larger profile excels during calm water and low-light periods when trout feed selectively on spent adults drifting helplessly on the surface. When fish are ignoring everything else and sipping quietly, the Megaspinner delivers the size and silhouette needed to match the hatch.

Fishing Profile

Lure
Best for
Fly, Trout
Presentation
Surface, Spinner Style (implied By Splitsville Platform)
Techniques
Casting, Fly Casting, Drifting
Conditions
Clear Water, Low Light, Open Water
SeasonSummer
WaterFreshwater

Field Notes

Use this as a spent mayfly imitation when trout are focused on large spinner falls, especially Hexagenia, Isonychia, or Green Drake hatches. It is best on calm water and during low-light periods when fish are sipping adults off the surface with minimal disturbance.

Pros

  • Excellent match for large spent mayflies
  • Works well during selective surface feeding
  • Low-profile spinner silhouette

Cons

  • Not ideal when fish are not keyed on spinners
  • Best in calm water, so wind can reduce effectiveness

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