Fly Rod Glossary
Plain-English definitions of the terms used in fly rod specifications, casting and setup.
Action
Where and how deeply a rod bends under load.
Blank
The tapered structural body of the rod.
Butt section
The lower, more powerful section nearest the grip.
Ferrule
The joint connecting rod sections.
Fast action
A design that bends primarily toward the tip under typical casting loads.
Medium action
A design that bends farther into the rod and often provides more feedback.
Slow action
A deeper-flexing design with a relaxed casting tempo.
Guide
A ring that controls fly line along the blank.
Stripping guide
A larger lower guide that manages line leaving the casting hand and reel.
Snake guide
A lightweight wire guide commonly used on upper rod sections.
Tip-top
The final guide at the rod tip.
Grip
The handle, commonly made from cork or composite material.
Reel seat
The hardware that secures the reel to the rod.
Fighting butt
A short extension below the reel seat used for leverage.
Line weight
The designation of the fly line a rod is designed to cast.
Rod weight
Usually shorthand for intended fly-line class, not the rod’s physical mass.
Swing weight
The perceived effort required to move and stop the rod during the cast.
Recovery
How quickly and cleanly a rod returns toward straight after bending.
Taper
How diameter and stiffness change along a blank or fly line.
Grain weight
A measure used to describe fly-line or shooting-head mass.
Loop
The curved shape that travels along the line during a cast.
Loading
Bending the rod as energy is stored during the cast.
Unloading
The rod straightening and transferring energy to the line.
Tracking
How consistently the rod tip travels in the intended plane.
Presentation
How the fly and leader arrive on the water.
Turnover
The process of the line and leader unrolling at the end of the cast.
Leader
The tapered connection between fly line and tippet.
Tippet
The fine terminal section connecting leader to fly.
Backing
Line stored behind the fly line to provide additional capacity.
Fly line
The weighted line that carries energy through the cast.
Weight-forward line
A line with more mass concentrated toward the front.
Double-taper line
A line with mirrored tapers at both ends.
Floating line
A line designed to remain at or near the surface.
Sink-tip line
A line with a sinking front section and floating rear section.
Full-sinking line
A line designed to sink along most or all of its length.
Overlining
Using a line rated heavier than the rod’s nominal designation.
Underlining
Using a line rated lighter than the rod’s nominal designation.
Haul
A pull on the fly line used to increase line speed.
Double haul
A haul applied on both the back cast and forward cast.
Roll cast
A cast made without a conventional aerial back cast.
Mend
A repositioning of line to manage drag and drift.
False cast
An aerial cast made without presenting the fly.
D-loop
The loop of line formed behind the caster in roll and Spey-style casts.
Spey rod
A long two-handed rod designed for Spey casting.
Switch rod
A rod intended to support both one- and two-handed techniques.
Tenkara rod
A telescoping fixed-line rod used without a reel.
Travel rod
A multi-piece rod designed for reduced packed length.
Uplocking reel seat
A reel seat whose locking hardware moves upward toward the grip.
Downlocking reel seat
A reel seat whose locking hardware secures the reel downward.
Hook keeper
A small loop used to hold the fly while moving between spots.