Fly Line Reviews

How to Choose the Best Fly Line for Bass

Feb 20, 2020 · 3 min read
Chandler CransBy Chandler Crans
Chandler Crans
Chandler Crans

Chandler Crans is a fly fishing expert and a former guide in Alaska. Whether he's reviewing the latest rods and reels, writing about where to fish,...

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How to Choose the Best Fly Line for Bass

Dark bronze smallmouth bass with glossy scales and spiny dorsal fin held over a boat by an angler wearing cap, fly fishing

Photo Credit: The Ridge Fly Fishing

Trident Fly Fishing is a full-service fly shop. We spend a lot of time testing gear and writing reviews to give you all of the tools to make your next trip a success. We are not a blog or a review site. 100% of our funding comes from your gear purchases. So if this blog post helps you on your next fly fishing adventure, please buy your gear from us. 

If you follow our blog, you’ve seen our recent posts about how to choose fly fishing gear for a specific species. We’ve posted about how to choose the best fly rod for Bass here:

and how to choose the best fly reel for Bass here:


In our mission to provide our customers and readers with the most well-rounded information possible, we’ve decided to continue these species-centered posts, this time with fly lines.


Bass are one of the most popular game fish across the US and beyond. These fish offer a challenging target to anglers who prefer boat fishing, river fishing for Smallmouth, or targeting fish in a tournament setting. Bass are ambush feeders and are generally fooled with a baitfish imitation, although they eat crustaceans, bugs, and more. Because they’re found in temperate freshwater conditions, choose a freshwater fly line. Seems intuitive, right? 


Fly Choice


Choosing a fly line for Bass often depends on fly choice. Here are a few quick tips:


  • Bass are most often found in shallow water environments with lots of structure. That means you're not often throwing sinking flies or sinking lines. A weight-forward floating line is usually the best fly line for the job.
  • Bass are ambush feeders, which usually means you're throwing larger flies. Large flies into tight cover = a fly line with a short front taper and a compact head designed for tucking large flies into tight structures accurately.
  • A large, lightweight fly thrown (think poppers) in windy environments necessitates a line (and a rod) that cuts through the wind... consider a line that's a half-size heavy or heavier (especially if you're fishing a fast action rod).


Some lines that fit the circumstances above are:

Scientific Anglers Bass Bug Black box packaging for textured freshwater floating fly line, camo green bass-bug spool visible through window
RIO Predator Elite Black-to-green RIO Predator fly line box with gold logo, SlickCast label and streamer fly photo — fly line for bass fishing
The Royal Wulff Triangle Taper Bass Olive green coiled fly line beside Triangle Taper packaging, smooth PVC-coated bass fly line for casting

Fishing Deep Structure


Like any fish, Bass aren't only found in shallow water. Bass can also be found holding on deepwater drop-offs or around submerged structure that's not easy to reach without a sinking fly line. In these circumstances, choosing a fly line for deepwater Bass is a little different than choosing a fly line for shallow water Bass.

Choose a line that achieves the sink rate that you desire. If you're fishing structure that's 5-10 feet deep, an intermediate fly line may be the best line for the job. If you're fishing a 20-foot drop-off, a full sinking line may be a better bet. Here are a few recommendations.


RIO Predator Elite RIO Predator fly line box, dark green-to-black gradient, gold logo, feathered bass fly artwork, Elite low-stretch label
Scientific Anglers Sonar Titan Full Intermediate Black Scientific Anglers Sonar Titan retail box with red SA logo, teal accent and visible green sink fly line spool

River Fishing

River fishing for Smallmouth Bass and Largemouth is also different than casting to tight cover on a lake or throwing sinking lines. River fishing often necessitates a longer cast and a more delicate presentation. Smallmouth can also be caught using slightly smaller flies like a Wooly Bugger so a fly line with a really aggressive front taper or compact head isn't paramount. Other freshwater lines that are designed for Trout are probably your best bet in this scenario, especially if you're casting a rod that's medium-fast or moderate action. Some recommendations include:

Scientific Anglers Amplitude MPX Black Scientific Anglers box for Amplitude Textured freshwater floating fly line, red SA logo and green textured line visible
RIO Gold XP Elite RIO Gold XP fly line retail box with black and gold packaging showing angler holding large brown trout over a river

Key Takeaways

The key takeaways here are that choosing a fly line for Bass depends on fly choice, fishing conditions, and rod choice. If you have questions and want to discuss fly lines for Bass in greater detail, please feel free to reach out via email to [email protected] or by phone at (888) 413-5211.

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Chandler Crans
Written by

Chandler Crans

Chandler Crans is a fly fishing expert and a former guide in Alaska. Whether he's reviewing the latest rods and reels, writing about where to fish, or helping a first-time angler pick the right fly line, Chandler combines real guiding experience with deep product knowledge and a genuine love of being on the water.

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