Choosing the Right Spey Fly Line

Understanding Spey Fly Fishing Lines

Until recently, two-handed rods were used almost exclusively in the pursuit of steelhead and salmon on the rivers of the British Isles, Scandinavia, and Canada. In the last five years, however, the popularity of Spey rods on our own steelhead and trout streams has exploded. In fact it’s not unusual today to see anglers applying two-handed techniques on lakes, flats and in the surf.

What would influence these fly fishers to trade their favorite single-handers for longer rods? Spey fly lines, and the rods that cast them, offer many potential advantages: greater casting distance, greater line control, more precise mending at longer distance, and the ability to operate with little back-casting room. These tools enable an angler to cover more water with less effort and less fatigue. And on larger rivers, you can reach areas that would be virtually unfishable with single-handed lines and rods. And let’s not forget the enjoyment and excitement of learning new skills that add to your proficiency on the water!

Because anglers are doing a lot more with Spey techniques these days, Spey fly line designs are evolving so rapidly, even experienced spey folks have trouble keeping up, let alone beginners!  We at Leland have chosen RIO Products as our primary source of spey fly fishing lines. RIO has virtually led the way in revolutionizing fly line designs for Spey anglers in North America and across the world. Since there are so many styles of spey casting and corresponding spey line designs, who better thanSimon Gawesworth, RIO fly line designer, former Captain of England’s World Fly Fishing Championships team, author, all-around nice guy, and one of the world’s leading authorities on spey casting to explain the ins and outs of modern spey lines? Read on and you’ll get the best synopsis we’ve ever seen on modern spey lines from the man himself, code named ‘SpeyBro’.


by Simon Gawesworth of RIO Products

‘A newcomer to spey casting would be forgiven for peeping into this sport, trying it out or talking to the many different opinions and then turning tail and running away from the mass of confusion that there is out there.’

‘There is a mind boggling array of theories, techniques, tackle and styles and it is very difficult for the beginner to make head or tail out of the world of spey casting. To explain the subtleties and intricacies of this spey world would be like trying to explain the rules of cricket to the average American, or of baseball to the average Brit. However, as fly line manufacturers, we only need to make it easier to understand the fly line – the most important part of your tackle.’


Let’s start with a look at spey line weights. Perhaps the greatest confusion lies in the rating of two-handed rods and lines. Most fly fishers are familiar with the rating of a single handed rod – choose a #5 rod for trout, a #8 rod for bonefish and a #12 rod for tarpon. Two-handed rods also have a similar rating – somewhere between #5 and #12, but the 8 weight fly line that loads your bonefish rod will never get close to loading a #8 two handed rod. The reason for this is that two handed rods are far more powerful than an equivalent rated single handed rod.

A single handed rod, rated for a #8 line, loads effectively with between 200 and 300 grains. A #8 two-handed rod will take between 450 and 600 grains to load for spey casting. This large range is due to the spey casting style used. At this stage there is no need to confuse anyone more with the differences in these styles, just remember that the two-handed rod needs more weight to make it load. In other words, if you put a regular WF8 line on a #8 two-handed rod you will never get close to loading it.

One confusing thing about spey lines is that most of them have more than one line number as a “size”. The WindCutter lines have three numbers such as 7/8/9, 8/9/10 and 9/10/11. The reason for this triple numbering system is that the first WindCutter line designed by Jim Vincent, was made by taking the body of a #10 line, adding some of a #9 to the front end and then finishing it off with the full front taper of a #8, thus the line became an 8/9/10. The numbering system stuck. As a simple guideline, use the middle number of the three to find out what line size it is – the 8/9/10 is a good #9 line.

The AFS and PowerSpey lines only have two numbers – 7/8, 8/9 and 9/10 for example and in these cases, generally use the higher number. The 8/9 is, in effect a #9line. To help choose the right line for your rod, we have compiled a chart that recommends the right lines for spey rods. (Please
See Rio’s Spey Line Recommendation Chart for all of Leland Spey Rods)

AFTMA Standard

Okay, so how confused do you want to be? In an attempt to illustrate the difference in line weights between the single handed AFTMA standard and the two handed AFTMA standard the following charts might be helpful. On the other hand, they might cause you to go cross eyed and reach for the nearest bottle of Single Malt!

The AFTMA standard is an attempt to standardize line weights so that whichever line manufacturer you buy a fly line from you know that they will all weigh about the same and load the rod equally – that is, of course, assuming line manufacturers manufacture lines to the AFTMA standard.

Before you look at the charts you need to understand that the two handed standard actually has four different categories: H, S, M and L. More than regular casting the head length of the line in spey casting influences the weight. So, we have four standards (for ease of recognition RIO’s appropriate Spey line is listed after the category):

‘H’ is for shooting Heads and is measured at 40 ft.
– AFS head and AFS OutBound

‘S’ is for Short belly spey lines and is measured at 55 ft
– WindCutter

‘M’ is for Mid length belly lines and is measured at 65 ft – PowerSpey

‘L’ is for Long belly spey lines and is measured at 75 ft.

So, depending on how long the belly of the spey line is, the “weigh point” falls at different lengths. The AFTMA single handed designation is measured at 30 feet.

Now that everyone is clear on that, let’s look at the AFTMA Standards (the numbers represent the weight in grains at the “weigh point”)!

SizeSingle Hand    H    S    M   L
 #5  140   —  380   —  —
 #6  160  250  420  460 600
 #7  185  300  470  510 650
 #8  210  360  530  570 710
 #9  240  430  600  640 780
#10  280  510  680  720 860
#11  330  600  770  810 950
#12  380  700  870  9101050

Oh, a final thing to remember is that the two handed standard has a plus or minus tolerance of 30 grains, while the single handed standard has a tolerance of plus or minus 6 to 12 grains (depending on the size). Thus you could have a spey line labeled S8 and it would be acceptable if it weighed between 500 and 560 grains.

As yet, there is no AFTMA Standard for Skagit type lines.


Most spey lines follow a simply designed taper. There needs to be weight in the back of the belly to load the rod effectively as a “D-loop”. There also needs to be a long fine front taper, so that the line lying on the water (“The Anchor”) at the start of the forward cast has as little drag as possible.

In a spey cast the “D-loop” (from A to B) loads the rod and needs to be the heaviest part of the line. The “Anchor” (B to C) lies on the water. The more line there is lying on the water, the more energy is lost during the forward cast as it tries to tear itself off the surface film.

A typical spey line design will have most of the weight in the back end of the head and a long, fine front taper to make the most of these casting requirements:

Within the basic spey line design are numerous variations, but the main one to compare is the head length. At RIO we make three different head lengths of spey lines. These are the the AFS, (Advanced Flight Spey) line, both as a Shooting Head and as an integrated shooting head, with a head length between 31 ft and 40 ft, the Windcutter, with a head length of between 45 ft and 56 ft and the PowerSpey™, with a head length of between 57 ft and 71 ft.

The longer the head of the spey line, the more line there needs to be outside the rod to make a cast. Longer belly lines, like the PowerSpey, really need plenty of room behind them to create a big enough D-loop for the line to load the rod – say 30 ft of room for an effortless cast. With the short to medium head length of the Windcutter, you may only need around 15 ft of room behind and with a short head line like the AFS, even less; perhaps only 8 ft of space is needed.

Of course, space behind isn’t the only factor. There are four other factors that influence your choice of head length:

1. Casting Ability – you need to be a better caster to handle the longer head length lines.

2. Rod Length – A short rod does not have the same lift as a long rod, so the shorter the rod, the shorter the line head length must be.

3. Sinking Tip – with sink tips or heavy flies it can be really tricky to get the sunken line to the surface with a long belly line. A short head line means that the sink tip is closer to you and easier to get out of the water.

4. Stripping flies – Some fishing techniques require you to strip the fly in to entice a fish to take. The short head lines are perfect for this as you must strip the start of the head up to the rod tip before making a cast.

If you don’t need to strip line, the short belly lines are more of a problem and a good caster will have to manage the slack coils of running line hanging in the water before each cast. They will also waste good fishing time having to strip the line into the casting length.

Line Taper Comparisons

Generally, if you start with a WindCutter line and, with practice, get to a skill level where you can cast the whole head at the tip of the rod, without stripping anything in, you are ready to move up to a PowerSpey line. When you do, make sure you start with the head about 12 feet in side the rod tip; this will be similar to the WindCutteryou are used to.


The most recent style of spey casting is called Skagit casting (pronounced ska-jit) and named after the Skagit river in Washington.

This style of spey casting utilizes an even shorter head length spey line than the WindCutter – something in the region of 27 ft. This exceptionally short head length allows the fly caster to make long casts in extremely tight situations. Even the most basic of spey casters can make a 70 ft cast with no more than 3 ft of room behind. Added to the shortness of the line is the fact that the head weighs about the same amount as the corresponding WindCutter, but at half the length. This means that theSkagit line has almost twice the weight per inch of the WindCutter line. This extra weight per inch is an immense asset for lifting out deeply sunken tips or heavy, large flies. Nothing will pick up big flies or T-14 or LC13 style sink tips as easily as a Skagit line will.

Skagit Cheaters

The most confusion with Skagit lines comes with something called “Skagit Cheaters”, which are 2½ ft, 5 ft and 7½ ft extension pieces for a Skagit line.

One of the ideas behind Skagit casting is that you want to maintain a constant ratio between the rod length and the head length of the line. It maybe 3 times the rod length, it may be 4 times the rod length, and each caster will find their happy ratio.

For the purpose of this example, let’s say a caster likes a ratio of 3½:1. A 12 ft rod would require 42 ft of line and a 15 ft rod will require 52½ ft. By following this ratio, it means that the caster never needs to adjust their casting stroke, regardless of which outfit they pick up.

If a caster likes this ratio and uses a 12 ft rod, they are going to need 42 ft of line to feel comfortable. The Skagit line has a 27 ft head. Add a 15 ft sink tip and you get 42 ft, which means there is no cheater needed. The next day, the same caster casts a 14 ft rod – 14 x 3½ = 49 ft. So, to keep the same casting stroke, the caster needs a total head length around 49 ft. A 27 ft Skagit line, plus the 15 ft sink tip is only 42 ft. Plug in the 7½ ft Cheater and the head length becomes 49½ ft and much closer to the required ratio.

The whole idea is pretty confusing to a novice, but once the concept is grasped, it is very easy to understand and allows for a caster to develop a consistent style, regardless of the size of rod used.

A final note to mention on the Skagit lines is that the sink tip does not form part of the calculation for line weight. If you look at the spey line recommendation chart and decide on a Skagit line for your rod, make sure you use the weight of the Skagit body. If the chart suggests you need a 550 grain Skagit line, it does not matterwhich size sink tip you add on to the front end of this (as long as it is not heavier than the Skagit body). The reason for this is that the sink tip usually does not form part of the D-loop and, therefore, plays no role in loading the rod. A typical example is that someone is told that they need a 550 grain Skagit line. They know they are going to use a 150 grain sink tip, so they buy a 400 grain Skagit line (thinking that the two added together will give them the correct load). This is very wrong and will result in an under loaded outfit. Make sure the Skagit body weight is correct, regardless of the sink tip.


More and more people are using two-handed rods for overhead casting in the surf these days. The length and power of these rods are great for throwing big flies out against a wind and over incoming surf.

When choosing a line for overhead casting a two-handed rod there are two important considerations.

1. The head length needs to be shorter than for spey casting so that the back loop does not drop and line speed is retained to shoot big distances.

2. The line weight should be less with an overhead cast, than with a spey cast. Here’s why:

With a spey cast, only part of the line weight loads the rod. In this example the load really comes from A to B, though B to C also helps load the rod. The piece of line from C to D really has no effect on the load of the rod.

With an overhead cast, the entire weight of the line serves to load the rod at the end of the back cast. This means that a lighter line can be used when overhead casting, as opposed to when spey casting, because the entire line length (A to B) loads the rod.

An ideal line for overhead casting a two-handed rod is RIO’s OutBound®.
The Outbound is available in several densities and sizes, but the most popular one for overhead casting, particularly in the surf, is the intermediate version.


Rio’s Windcutter VersiTip Linesare unique in the fly fishing world. Nobody else makes a spey line with three sections. These three sections are:

1. a body section
2. a middle section (Tip 2)
3. and the front tip (Tip 1)

There are a number of reasons for these three sections:

1. For normal spey casting simply change out Tip 1 with whichever sink tips is required for the fishing conditions. Each sink tip in the wallet will weigh the same, which ensures the casting is not affected and the line remains balanced. However, each sink tip has a different sink rate from the clear intermediate tip, with a sink rate of 1½ inches per second, to the Type 8, density compensated tip which sinks at 8 inches per second.

2. For overhead casting, when a shorter and lighter weight head is needed, simply remove Tip 2 completely and attach the sink tip, or tip 1 directly to the body.

3. Sometimes extra depth is required and many fly fishers use RIO’s long 24 ft density compensated sink tips called Big Boys. These tips are too long to simply replace Tip 1, so when using longer sinking tips like this, again remove Tip 2 and attach the long tip directly to the body.

4. One odd-looking tip in the wallet is grey and has two loops on. This tip is called a sink tip compensator. The sink tip compensator is a sinking Tip 2. Replace the floating tip 2 with this compensator when fishing in strong currents. By lengthening the sinking portion of the line, the current has much less “lift” effect and ensures that the fly stays deep.

5. On really windy days, or with big, cumbersome flies, remove Tip 1 and attach the leader directly to Tip 2. This shorter taper and heavier front end makes light work of the windiest of conditions and the biggest of flies.

T-8, T-11 & T-14

T-8, T-11 & T-14 are level shooting head materials. T-8 weighs 8 grains per foot, T-11 weighs 11 grains per foot and T-14 weighs 14 grains per foot.T-8 has a sink rate of 7 inches per second, T-11 at 8 inches per second and T-14 around 9 inches per second and.

The material is usually sold in a 30 ft pack. Anglers simply cut this level material to the length they need for a variety of fishing conditions, and then add a braided loop to each end to easily attach to the spey line. The most useful tip lengths from a 30 ft pack are 15 ft, 10 ft and 5 ft, though some anglers prefer 15 ft, 9 ft and 6 ft lengths.

The weight of T-14 makes it pretty heavy for the lighter lines to lift out. Most of the Skagit line sizes will not have a problem with 15 ft of T-14, but attaching it to the lighterWindCutter and PowerSpey lines can result in poor turnover and inefficient casts. As a simple guideline, use T-14 for the spey lines of #9 and bigger, T-11 for the #7 to #9 sizes and use T-8 for the lighter line sizes.

Which Spey line should I choose?

With the array of spey lines on the market it is a little baffling to know which one to choose. Hopefully this document has at least given you an idea behind the different line designs. Following is a description of each line we make and their particular advantages:

Overhead casting – particularly useful in the salt or in lakes. It is available in 6 densities: Floating, Hover (1” per second), Intermediate, Sink 3 (3” per second), Sink 6 (6” per second) and Sink 8 (8” per second). Three adaptable versions with a level T-8, T-11 and T-14 head are designed to be cut to the perfect head weight and length for individual casting styles. The intermediate OutBound is made up to a WF14 (600 grains) size and is perfect for the larger rods of #10 and bigger.

AFS Shooting Head – NEW for 2008 An excellent presentation line that is very easy to cast. There are four different densities available:

1. F. A full floating line between a 4/5 weight (300 grains, 19 grams – 31 ft, 9.5 m in length) and a 10/11 weight (640 grains, 42 grams – 40 ft, 12.2 m in length). The head is a subtle olive color that will not spook fish in clear water, but the rear 15 ft is yellow so the angler can gauge the line’s swing. For anglers needing an easier color line to see there is also a Steelhead Orange floating AFS head.

2. F/I. A floating line with a 15 ft intermediate sinking tip. This line starts at a 7/8 (460 grains, 30 grams – 37 ft, 11.2 m in length) and goes to 10/11.

3. S1. A slow sinking head. The same weight range as the F/I but the whole head has a very slow sink rate of 1” per second. This is an excellent choice for cooler water conditions when fishing for Atlantic salmon. It is also a very good fish catching line for summer run steelhead, particularly on the Deschutes. Sizes 7/8 to 10/11.

4. S4. A full sinking head with a sink rate of 4” per second. This fast sinking head is a great line for early season and back-end Atlantic salmon and particularly good for winter steelhead. It is one of the easiest casting and fishiest sinking lines ever made. It comes in the same sizes as the “F/I” and the “I” heads. Sizes 7/8 to 10/11.

While these lines are exceptionally easy to cast and give incredible presentation, the very best results will be achieved if a Spey VersiLeader is attached to the front end. RIO has 6 different densities of these leaders in two lengths – 10 ft and 15 ft. The leader densities are:

1. Floating (olive)
2. Intermediate (1.5 inches per second)
3. Slow sink (2.4 inches per second)
4. Medium sink (3.9 inches per second)
5. Fast sink (5.6 inches per second)
6. Super fast sink (7.0 inches per second)

Use the 10 ft leaders with rods of 12’ 6” and less, and the 15 ft leaders with rods of 13 ft or more.

Attach the back of the shooting head to a hard nylon like Rio’s Slick Shooter (35 lb or 50 lb) for the ultimate in distance, or to a floating Powerflex Core Shooting Line(0.030” or 0.035”) for something a little more manageable.

AFS OutBound® Integrated Shooting Head – NEW for 2008 Built with a thin, hard running line this line is the integrated version of the AFS head. It is an excellent choice of line for casters that do not want a loop to loop connection running through their guides. The short head is very easy to cast and particularly useful in tight situations and the long front taper gives a beautiful presentation. These lines are only available with a floating head and in sizes 4/5 to 10/11.

Like the AFS head, these lines will cast even better with one of RIO’s Spey VersiLeader.

The Skagit lines are, quite simply, the easiest way to cast large flies or fast sinking tips. The mass of the head and the short body length result in incredible lifting power, making it child’s play to cast otherwise “nasty” rigs. It is a very easy line to learn to cast with and also extremely useful for casting in tight situations. The Skagit line is available in: 300 (new for 2008), 350, 400, 450, 500, 550, 600, 650, 700 and 750 grain head weights.

The Skagit lines have a thin running line extending from the 27 ft long head that aids in easy distance and shooting ability. The front end finishes with a loop and to this loop you will need to attach some kind of tip. The line does not come with a front tip of any kind, so if you purchase this you will need to add a tip to your purchases. As explained earlier, you may also need a Skagit Cheater, depending on your rod length, casting style and size of sink tip used. RIO makes five 15 ft tips to choose from:

1. Floating
2. Intermediate (1.5 to 2 ips)
3. Type 3 (3-4 ips)
4. Type 6 (6-7 ips)
5. Type 8 (8-9 ips)

In addition you can purchase T-8, T-11 or T-14 and cut to the desired length and weight.

Rio’s Skagit VersiTip Kit
The Skagit VersiTip is a Skagit line, packaged with a 5 ft floating Skagit Cheater, a 15 ft Type 6 tip, a 15 ft Type 8 tip and one of RIO’s shooting head wallets. For those that don’t know much about the Skagit technique and tackle it is a good purchase as it has pretty well everything you need to start with. The only possible add on would be a 15 Foot Floating Tip, for conditions when you don’t need to be deep. The Skagit VersiTip is available in 450, 550, 650 and 750 grain sizes.

Skagit Shooting Head
The Skagit shooting head is the head from the Skagit line. It is 27 ft long and has a loop in both ends. To the front end you attach a tip as recommended for the regular Skagit line, while the back end loop is ideal for attaching your favorite RIO shooting line. These heads are available in 350, 400, 450, 500, 550, 600, 650, 700 and 750 grain sizes.

One very simple fishing set-up is a reel loaded up with either SlickShooter or a floating Powerflex core shooting line and have a wallet with a couple of AFS heads (floating, slow intermediate and Sink 4 for steelhead fishers and floating, slow intermediate and intermediate sink tip for Atlantic salmon fishers) and a Skagit shooting head with some tips. With a rig like this, each fly fisher would be primed for everything and any situation they would encounter.

The original and still the best all round and the most versatile spey line developed. This line is available in a full floating version in sizes; 4/5, 5/6, 6/7/8, 7/8/9, 8/9/10, 9/10/11 and 10/11/12. The head length varies according to the size. It is also available as a VersiTip Line, packaged with a wallet of tips including a floating tip, a 15 ft clear intermediate tip, a 15 ft Type 3 tip, a 15 ft Type 6 tip and a 15 ft Type 8 tip. As mentioned above, there is also a sink tip compensator, which is a sinking Tip 2. TheVersiTip line is available in 5/6, 6/7/8, 7/8/9, 8/9/10, 9/10/11 and 10/11/12 sizes, though the 5/6 VersiTip does not have a Type 8 sink tip, a sink tip compensator or a floating Tip 2.

(Note: I would also highly recommend the floating Windcutter, or Windcutter Versitip with floating tip, as the best all-around spey line for dead-drift nymph and dry presentations to trout and steelhead. Its head length is long enough to effectively stack mend for better drifts. – Dean Schubert  – Leland)

PowerSpey NEW for 2008

RIO’s new PowerSpey has a medium length head between 57 ft and 71 ft (depending on the size) and with its revolutionary taper design is the easiest mid to long belly line to cast. The longer head is ideal for longer rods, larger rivers and for casters that prefer to do less stripping of the fly between casts. Fishing with the PowerSpey line catches more fish – as there is little need to strip the head in between casts, the fly fisher will make more casts in a day, thus increasing the odds.

Another advantage with the longer head lines is when winter fishing with air temperatures below freezing. As there is no need to strip the line in between casts, the rod guides do not get iced up.

The PowerSpey is available in 5/6, 6/7, 7/8, 8/9, 9/10 and 10/11 sizes and either as a full floating line or as a VersiTip version. The PowerSpey VersiTip line does not have a Tip 2, so there is only one loop in the line.


There are a few accessories RIO makes that are worth mentioning here.

The Skagit Floating Tip is a 15 ft floating tip designed to be added to the Skagit lines to make a full floater, it is also a good replacement for the WindCutter floating tip. Here is a guideline of which floating tip to choose for which Skagit line or shooting head:

#7      300 to 400 grains
#8      400 to 500 grain lines
#9      500 to 600 grain lines
#10     550 to 650 grain lines
#11     600 to 700 grain lines
#12     650 to 750 grain lines.

The Skagit Cheaters are “plug-in” extensions as mentioned earlier. For 2008 RIO has changed the sizes to be more applicable. Each selection packet comes with a 2½ ft, a 5 ft and a 7½ ft floating cheater as well as a 5 ft intermediate cheater. RIO also sells the 5 ft floating cheater on its own. Here is a guideline of which Cheater to choose for which Skagit line or shooting head:

6/7/8      300 to 350 grains
7/8/9      350 to 450 grains
8/9/10      450 to 550 grains
9/10/11      550 to 650 grains
10/11/12      650 to 750 grains

The Big Boy is a 24 ft long sinking tip, ideal for really getting deep and staying deep. It is great on the end of a Skagit line, or a WindCutter, but remember to remove both Tip 1 and Tip 2 if you are attaching a Big Boy to the WindCutter. They are available in sizes 150, 200, 250, 300, 400, 500 and 600 grains and the sink rate of each is as follows:

150      4.8 ips
200      5.5 ips
250      6.4 ips
300      7.3 ips
400      8.4 ips
500      9.0 ips
600      9.5 ips

The WindCutter does not have as much lifting power as the Skagit line so will take a lighter Big Boy tip than the corresponding Skagit line. Here’s a rough guideline to the maximum weight Big Boy that each line will take. This does depend on the rod, current speed, fly size and caster’s skill!

WindCutter  Big Boy         Skagit Big Boy 
 5/6  None 300 150
 6/7/8  200 gr 350 200
 7/8/9  250 gr 400 250
 8/9/10  300 gr 450 300
 9/10/11  300 gr 500 300
 10/11/12  400 gr 550 400
 600 400
 650 500
 700 500
 750 600

Simon’s “Modern Spey Casting” is the best instructional DVD on spey casting ever produced. Learn the basics as well as these casts: roll cast, switch cast, single spey, double spey, snap T, snake roll, wombat cast, perry poke, jelly roll, skagit casts, underhand cast, spiral spey, overhead cast, single handed spey casts and using the two-handed rods in the salt. It also includes fault recognition, a glossary of terms and a very useful biokinetic section.

Thanks again, Simon ‘SpeyBro’ Gawesworth, for giving a big boost to our spey line savvy! – Leland

See the Rio Spey Fly Line Chart for all Leland Spey Rods.