Fly Reels
Fly Reel Size Chart
Brands label reel sizes inconsistently. This table maps the labels onto rod weights and backing capacity.
Fly reel sizing is genuinely confusing, and it is the brands' fault. One company's "size II" covers 3-5 weight; another's "5/6" covers 5 and 6; a third just prints a number. The only thing they all agree on is the stated line-weight range — and that is the figure to trust.
The short list
| # | Pick | Best for | Score | Price |
|---|---|---|---|---|
| 1 | Orvis Clearwater Large Arbor Reel II3.4" · 3-5 wt · 5.6 ozBest Overall | The 3-5 weight row — a size II for a 5-weight rod | 8.6 | Check price on Amazon |
| 2 | Redington Behemoth Fly Reel4/5 · 5/6 · 7/8 · 9/10 · 11/12Best Upgrade Pick | Sized 4/5 through 11/12, if you plan ahead | 8.4 | Check price on Amazon |
| 3 | Orvis Battenkill Disc Fly ReelSize II (3-5 wt)Best for Small Streams | Size II covers 3-5 weight | 7.4 | Check price on Amazon |
1. Best Overall
Orvis Clearwater Large Arbor Reel II
A sealed-drag large-arbor reel rated for the exact weights a trout beginner fishes, at a price that makes the budget alternatives hard to argue for.
| Spec | Value |
|---|---|
| Diameter | 3.4" |
| Line weights | 3-5 wt |
| Weight | 5.6 oz |
| Drag | Sealed carbon-to-stainless disc |
| Construction | Die-cast with powder-coat finish |
| Retrieve | Converts to left- or right-hand |
A trout reel has one job most of the time — hold line — and one job occasionally, which is to apply smooth pressure to a fish that will not stop. The Clearwater II does both: 3.4 inches across, rated 3-5 weight, 5.6 oz, with a sealed carbon-to-stainless disc drag.
Sealed is the word that matters. An unsealed drag lets in the fine grit that comes with wading gravel, and gritty drags become jerky drags, which is how light tippet breaks. Sealing it is normally something you pay a lot more for.
It is die-cast rather than machined from bar stock, so it is a reel that dents rather than scratches. For a first reel that is the right compromise to accept.
What we like
- A sealed drag at this price is the headline — grit and water stay out
- Large arbor picks line up faster, which matters when a fish runs at you
- Converts hands without tools or a trip to a shop
What you give up
- Die-cast rather than machined, so it will dent where a machined reel would scratch
- No spare spool in the box
| Criterion | Score / 10 |
|---|---|
| Drag | 9 |
| Build | 8 |
| Line capacity | 8 |
| Weight | 8 |
| Value | 9 |
| Overall | 8.6 |
2. Best Upgrade Pick
Redington Behemoth Fly Reel
An enormous amount of drag and a lifetime warranty for the money — genuinely the pick if you expect to fish an 8-weight one day, and overkill if you do not.
| Spec | Value |
|---|---|
| Sizes | 4/5, 5/6, 7/8, 9/10, 11/12 wt |
| Drag | Carbon fiber with specialized carbon braking discs, capped (not sealed) |
| Construction | Die-cast, interlocking large-arbor spool |
| Colors | Black, gunmetal, O.D. green |
| Supplied with | Nylon reel case |
| Warranty | Lifetime |
The Behemoth's reputation is built on one number nobody publishes for trout reels: maximum drag. It uses a carbon-fiber drag with specialized carbon braking discs and a die-cast, interlocking large-arbor spool, and it stops fish that have no business being stopped by a reel at this price.
For a beginner fishing trout, that is mostly beside the point. A 5-weight with 5X tippet breaks long before any drag setting matters. What is relevant is the lifetime warranty, the stiff spool, and the fact that the 7/8 size is the obvious reel to buy later if you ever go after bass, pike or saltwater — so buying into the family can make sense.
The honest caveats are weight and sealing. It is heavier than the Clearwater II, and the drag is capped rather than sealed, so a gravel-bar dunking is not a non-event.
What we like
- The strongest drag in its price class by a wide margin — it is the reel people reuse on an 8-weight later
- Lifetime warranty
- Interlocking large-arbor spool design is noticeably stiff for a die-cast reel
What you give up
- Capped, not sealed — grit can still reach the drag stack
- Heavier than the Clearwater II, which you feel on a 5-weight all day
- Drag power is irrelevant for trout, so you are paying for capability you will not use
| Criterion | Score / 10 |
|---|---|
| Drag | 10 |
| Build | 8 |
| Line capacity | 9 |
| Weight | 6 |
| Value | 9 |
| Overall | 8.4 |
3. Best for Small Streams
Orvis Battenkill Disc Fly Reel
The small-stream reel: light, simple, good-looking, and deliberately not trying to be a big-fish reel.
| Spec | Value |
|---|---|
| Sizes | II (3-5 wt), III (5-7 wt), IV (7-9 wt) |
| Colors | Black, copper, matte olive |
| Design | Updated classic with tightened tolerances |
The Battenkill is Orvis's long-running classic trout reel, recently updated with tighter tolerances and a restrained set of finishes. Size II covers 3-5 weight, III covers 5-7, IV covers 7-9.
It belongs on a short rod on small water, where the reel genuinely is just line storage and the thing you notice is weight and balance. If you are buying a 7'6" 4-weight for a brushy creek, this is the reel for it. If you are buying a 9-foot 5-weight as your only rod, the Clearwater II is the more useful choice.
What we like
- Light and simple, which is exactly right on a short rod for small fish
- A classic look that holds its appeal longer than a performance reel's styling
- Size II maps precisely to a 3-5 weight rod, no guessing
What you give up
- Less drag capability than the Clearwater II or Behemoth
- Smaller arbor than a dedicated large-arbor reel, so slower line pick-up
| Criterion | Score / 10 |
|---|---|
| Drag | 6 |
| Build | 8 |
| Line capacity | 6 |
| Weight | 9 |
| Value | 7 |
| Overall | 7.4 |
The chart
| Rod weight | Reel class | Common labels | Typical backing |
|---|---|---|---|
| 1-3 wt | Smallest trout | I, 1/2, 2/3, 3/4 | 50-75 yd of 20 lb |
| 3-5 wt | Trout | II, 4/5, 5/6 | 75-100 yd of 20 lb |
| 5-7 wt | Large trout, bass | III, 5/6, 6/7 | 100-150 yd of 20 lb |
| 7-9 wt | Bass, pike, light salt | IV, 7/8, 8/9 | 150-200 yd of 20-30 lb |
| 9-11 wt | Saltwater | V, 9/10, 10/11 | 200-250 yd of 30 lb |
| 11-14 wt | Big saltwater | VI+, 11/12, 12/13 | 250-300+ yd of 30-50 lb |
How to read it
Find your rod's weight in the first column and read across. Then check the reel's own published line-weight range against that row. Roman numerals and slash numbers are brand conventions rather than standards, and two reels labeled "5/6" from different companies can hold noticeably different amounts of line.
Backing capacity in the fourth column is a working figure rather than a published standard: it assumes 20 lb Dacron and a weight-forward floating line, which is what a beginner will have. Thicker backing or a longer line changes it.
How to tell if a reel is the right size once you have it
The physical test is better than any chart. Wind on backing, then the fly line, and look at the spool:
- Fly line fully wound sits just below the spool rim — around an eighth of an inch of clearance. Correct.
- Fly line sits proud of the rim, or rubs the frame — too much backing, or the reel is too small. Take backing off.
- Fly line sits well below the rim with the spool half empty — too little backing. Add more; the line will coil tightly otherwise.
Fly reel backing guide covers how to get this right, including how to work it out without a line counter.
What this means for your first setup
Buy a size II / 3-5 wt class reel for a 9-foot 5-weight rod, with roughly 75 to 100 yards of 20 lb backing under a WF5F line. Or buy a combo and have all of it done for you — which is what we recommend for a first setup.
Best fly reels for beginners has the ranked picks, best fly reels under $100 is the budget band, and best fly rod combos for beginners is where the matched-outfit route starts.
Where these figures come from
The reel-class-to-rod-weight mapping is the industry convention rather than a formal standard, and we have labeled it as such. The brand-label column reflects how the manufacturers we feature actually label their reels — Orvis uses Roman numerals with a published line-weight range, Redington uses slash pairs, Piscifun uses slash pairs. Each of those is recorded with its source in our verification record. Backing capacities are working figures for 20 lb Dacron, not published specifications.
Questions people actually ask
What size fly reel do I need for a 5 weight?
A reel rated for 3-5 weight or 5/6 weight, which most brands label as a size II. It should hold a WF5F fly line over roughly 75 to 100 yards of 20 lb Dacron backing without the line sitting proud of the spool rim. Always check the reel's own stated line-weight range rather than trusting the size number.
What do fly reel sizes like II and 5/6 mean?
They are brand conventions for the range of line weights the reel is built to hold. Orvis uses Roman numerals — size II covers 3-5 weight — while Redington and Piscifun use slash pairs like 5/6. The conventions do not align exactly between brands, so the published line-weight range is the only figure to trust.
Can a fly reel be too big for the rod?
Yes. An oversized reel adds weight at the butt that unbalances the cast and makes a long day more tiring, and it holds more backing than you will ever use. It is not dangerous, just worse. Match the reel's stated line-weight range to your rod and you will not have the problem.
How do I know if my reel holds enough backing?
Wind the backing on, then the fly line, and look at the spool. The fully wound fly line should sit just below the spool rim with around an eighth of an inch of clearance. If it sits proud or rubs the frame, remove backing. If the spool is only half full, add more — too little backing makes the line coil tightly.
Does fly reel size affect how it fishes?
Only through weight, balance and arbor diameter. A larger reel is heavier, which you feel on every cast, and a larger arbor picks line up faster and lets it coil more loosely. Drag capability is a separate matter and, for river trout on light tippet, rarely the limiting factor.
Read next
Best Beginner Reel
Best Fly Reels for Beginners
Beginner fly reels ranked on drag sealing rather than drag power — and whether you need one at all.
Fly Reels
Fly Reel Backing: How Much Do You Need?
What backing is, how much to use, and why it matters on every cast rather than only on big fish.
Fly Reels
Does Fly Reel Size Matter?
Reel size matters for fit and balance, not performance. What the number actually changes.
Fly Reels
Large Arbor vs Mid Arbor Fly Reels
What arbor size changes, why line memory matters more than retrieve speed, and when mid arbor is fine.
Fly Rods & Combos
Fly Rod Weight Chart
Rod weight 1 to 12 mapped against species, water type and line weight, in one semantic table.
Best Under $100
Best Fly Reels Under $100
What around-$100 buys in a fly reel, including a CNC-machined body, and what it gives up.