Outdoors & Fitness
The Best Spoke Wrenches: 4 Compared (and One to Skip)
We compared four spoke wrenches on the nipple sizes each covers in millimetres, how many sides of the nipple they grip, and which ones leave out the middle size.
The short version
The Pedro's Pro Spoke Wrench Set of 3 is the one to buy. It covers 3.23, 3.30 and 3.45 mm, and each wrench carries both a 3-side and a 4-side opening on a reversible handle, so you can take the more forgiving grip on a tight nipple and the faster one on a loose one. The Park Tool SW-7.2 is the value pick, putting the same three sizes into one made-in-USA body. The Pedro's Multi Spoke Wrench is the compact answer, a unibody tool in heat-treated steel covering the same three sizes with a lifetime warranty behind it. Skip the Park Tool SW-9 as a first wrench: it is a good specialist for tight access, but it carries only 3.23 and 3.45 mm and leaves out 3.30, which is one of the three sizes you are most likely to meet. Best for: anyone about to true a wheel who has not yet measured a nipple.
Our picks at a glance
- Pedro's Pro Spoke Wrench - Set of 3 - Buy. Three sizes, each with a 3-side and a 4-side opening on a reversible handle.
- Park Tool SW-7.2 Triple Spoke Wrench - Buy. The three common sizes in one flat body, and the cheapest sensible way to own all of them.
- Pedro's Multi Spoke Wrench - It depends. A compact unibody wrench that takes the universal design seriously for once.
- Park Tool SW-9 Double-Ended Spoke Wrench - Skip. A genuinely useful specialist that is the wrong tool to own first, because it leaves out the middle size.
The verdict in 30 seconds
What mattered most
- Nipple sizes covered
- Carries 3.30 mm
- Engagement
- Steel treatment
- Handle
- Number of pieces
A spoke wrench is the cheapest tool that can ruin an expensive wheel. Nipples are small, soft and made in sizes that differ by fractions of a millimetre, so a wrench that is close rather than correct rounds the flats off, and a rounded nipple is a spoke you now have to replace. Three sizes cover almost everything on modern wheels: 3.23, 3.30 and 3.45 mm. What separates the tools is whether they carry all three, and whether they grip three sides of the nipple or four.
Three sizes, each with a 3-side and a 4-side opening on a reversible handle.
Best for: Anyone truing wheels properly, especially older or weathered nipples that need a four-sided grip.
- Covers 3.23, 3.30 and 3.45 mm, the three sizes that account for most modern wheels
- Each wrench carries both 3-side and 4-side openings, so you can choose grip over speed on a stiff nipple
- Investment cast, heat-treated tool steel
- The plastic handle reverses so the ergonomics suit whichever opening you are using
- Three separate tools to store and to lose, where the triples are one
- More outlay than a single combined wrench covering the same sizes
- A handled wrench is bulkier in tight spaces than a flat one
The three common sizes in one flat body, and the cheapest sensible way to own all of them.
Best for: A first spoke wrench, or a second one to live in the wheel bag.
- Carries all three common sizes: 3.23 mm, 3.30 mm and 3.45 mm
- Park Tool describes precision-fit wrenches for the three most popular nipple sizes
- Made in the USA and nickel plated
- One flat tool rather than three, so nothing gets separated
- Park Tool does not state how many sides of the nipple each opening engages
- No heat treatment mentioned on the page, where both Pedro's tools state heat-treated steel
- A flat body gives less purchase than a handled wrench when a nipple is stiff
- Three openings on one tool means the unused two are always in the way
A compact unibody wrench that takes the universal design seriously for once.
Best for: The toolbox or the travel kit, where size matters more than leverage.
- Fits 3.23, 3.30 and 3.45 mm nipples in one compact body
- Heat-treated tool steel, which Pedro's states directly
- Backed by Pedro's lifetime warranty
- An ergonomic unibody shape that Pedro's designed against the usual flaws of universal wrenches
- No 4-side opening, so a rounded or stiff nipple is riskier than with the Pro set
- Compact means less leverage than a handled wrench
- Covers the same sizes as the SW-7.2 without a decisive advantage
A genuinely useful specialist that is the wrong tool to own first, because it leaves out the middle size.
Best for: A second wrench for tight access, once you already own something covering 3.30 mm.
- Carries 3.23 mm and 3.45 mm on opposite ends
- Made in the USA, precision machined, nickel plated and vinyl dipped
- Park Tool recommends it where access is limited, such as small wheels with high spoke counts
- Also suits working alongside a spoke holder on bladed aero spokes
- Does not carry 3.30 mm, one of the three sizes you are most likely to encounter
- Costs more than the SW-7.2, which carries all three sizes
- Its advantages are about access rather than fit, which is a second-tool problem not a first-tool one
- Buying it as a general spoke wrench means discovering the gap on a wheel you are halfway through
| Criteria | Pro Spoke Wrench - Set of 3 Top pick | SW-7.2 Triple Spoke Wrench | Multi Spoke Wrench | SW-9 Double-Ended Spoke Wrench |
|---|---|---|---|---|
| Verdict | Buy it | Buy it | It depends | Skip it |
| Best for | Anyone truing wheels properly, especially older or weathered nipples that need a four-sided grip. | A first spoke wrench, or a second one to live in the wheel bag. | The toolbox or the travel kit, where size matters more than leverage. | A second wrench for tight access, once you already own something covering 3.30 mm. |
| Price tier | $$ · mid-range | $ · budget | $ · budget | $$ · mid-range |
| Nipple sizes covered | 3.23, 3.30, 3.45 mm | 3.23, 3.30, 3.45 mm | 3.23, 3.30, 3.45 mm | 3.23 and 3.45 mm |
| Carries 3.30 mm | Yes | Yes | Yes | No |
| Engagement | 3-side and 4-side openings | Not published | Not published | Not published |
| Steel treatment | Investment cast, heat-treated | Nickel plated, no heat treatment stated | Heat-treated tool steel | Precision machined, nickel plated |
| Handle | Reversible plastic handle | Flat body | Compact unibody | Vinyl dipped |
| Number of pieces | Three | One | One | One |
| Warranty | Not published | Not published | Lifetime | Not published |
| Best use | Bench truing | First wrench | Toolbox or travel | Tight access, second tool |
Which one is right for you?
- Anyone truing wheels properly, especially older or weathered nipples that need a four-sided grip. Buy it Pedro's Pro Spoke Wrench - Set of 3
- A first spoke wrench, or a second one to live in the wheel bag. Buy it Park Tool SW-7.2 Triple Spoke Wrench
- The toolbox or the travel kit, where size matters more than leverage. It depends Pedro's Multi Spoke Wrench
- A second wrench for tight access, once you already own something covering 3.30 mm. Skip it Park Tool SW-9 Double-Ended Spoke Wrench
How we judged the field
Four things matter in a spoke wrench and the first one settles most purchases. Which nipple sizes does it carry, in millimetres? Three sizes cover most modern wheels, 3.23, 3.30 and 3.45 mm, and a tool that omits one of them will eventually meet a wheel it cannot turn. Second is engagement: whether the opening grips three sides of the nipple or four, which decides how much load is spread and therefore how likely a stiff nipple is to round. Third is the steel, because a wrench opening is a precision shape and a soft one opens up with use. Fourth is the handle, which is really a question about leverage against access.
The field splits into three-size tools and specialists. Pedro’s and Park Tool both make a tool carrying all three common sizes, and Pedro’s makes a set of three separate handled wrenches that adds the four-sided option. Against those sits Park Tool’s double-ended wrench, which is a deliberate specialist for tight access and which we have included precisely because it is the one people buy by mistake. We also looked at Park Tool’s SW-20.2 master wrench and left it out: its own page marks it discontinued.
The Pedro’s Pro Spoke Wrench Set of 3 is the tool to buy if you intend to true wheels rather than just nudge them. The set covers 3.23, 3.30 and 3.45 mm, so the size question is settled, and each wrench is investment cast in heat-treated tool steel. The feature that earns it the pick is the dual opening: every wrench carries both a 3-side and a 4-side cutout, and the plastic handle reverses so the grip stays comfortable whichever one you use. That matters because the two openings are for different jobs. Three sides is quick and easy to seat, which suits running around a wheel on nipples that turn freely. Four sides spreads load across more of the nipple, which is what you want on anything stiff, corroded or already slightly chewed. The costs are that it is three tools rather than one, so there is more to store and more to lose, and a handled wrench is bulkier where access is tight. For bench work, neither is a real problem. Best for: proper truing, especially on older wheels.
The Park Tool SW-7.2 is the value answer and a genuinely good first purchase. It puts all three common sizes, 3.23, 3.30 and 3.45 mm, into one flat body that Park Tool describes as precision-fit for the three most popular nipple sizes, and it is made in the USA and nickel plated. Because it is one piece there is nothing to separate, which is why a tool like this belongs in a wheel bag or a saddle pack as well as on a bench. What the page does not tell you is how many sides of the nipple each opening engages, and it does not mention heat treatment, where both Pedro’s tools state heat-treated steel outright. Those are the two specifications that predict how a wrench ages, so their absence is worth noting rather than assuming. In use the flat body also gives less purchase than a handle when a nipple is stiff, and the two openings you are not using are always somewhere near your knuckles. Best for: a first spoke wrench covering every common size.
The Pedro’s Multi Spoke Wrench takes the universal spoke wrench, a design with a deservedly poor reputation, and makes a decent one. It fits the same three sizes as the SW-7.2 in a compact unibody shape, it is heat-treated tool steel, and it carries Pedro’s lifetime warranty, which is the strongest backing of any tool here. Pedro’s is explicit about the design brief, noting that universal wrenches are usually low quality and awkward, and the result is a tool that is genuinely pleasant to hold for something so small. The trade-offs follow from the size. There is no four-sided opening, so a stiff nipple carries more risk than it would with the Pro set. Compact also means short, and short means less leverage exactly when you need it. Against the SW-7.2 it wins on stated heat treatment and warranty and loses nothing obvious, so the choice between them is mostly shape. Best for: the toolbox, the travel kit or the bag that goes to races.
The Park Tool SW-9 is a good tool and the wrong first purchase, which is a distinction worth drawing carefully. It carries 3.23 mm on one end and 3.45 mm on the other, is made in the USA, and is precision machined, nickel plated and vinyl dipped. Park Tool is clear about what it is for: wheels where access to the nipples is limited, such as small wheels with high spoke counts, and working alongside a spoke holder on bladed aero spokes. Those are real situations and this is a real answer to them. The problem is what is missing. There is no 3.30 mm, which is one of the three sizes you are most likely to meet, and it costs more than the SW-7.2 which carries all three. Bought as a general spoke wrench, it works until it does not, and the discovery happens halfway through a wheel. As a second tool alongside a triple, it makes complete sense. Best for: tight access, once you already own the middle size.
Pedro’s Pro Spoke Wrench - Set of 3 vs Park Tool SW-7.2 Triple Spoke Wrench: which should you buy?
The Pedro’s Pro set and the Park Tool SW-7.2 cover identical sizes, so the choice is about engagement and form. The Pedro’s set is the better tool, and the reason is the four-sided opening. Three sides is fine on a wheel whose nipples all turn; four sides is what stops a stiff one rounding, and a rounded nipple means replacing a spoke rather than turning it. Having both on every wrench, with a handle that reverses to suit, is a genuine capability the Park Tool page does not claim.
The SW-7.2 wins on the practical arguments. It is one piece rather than three, it sits in the budget tier where the Pedro’s set sits in mid-range, and one flat tool is far easier to keep with a wheel bag than a set that can be split up. If your wheels are in reasonable condition and you are truing occasionally, the extra engagement is insurance you may never claim. If you are working on older wheels, winter bikes or anything that has lived outside, buy the Pedro’s set and treat the four-sided openings as the reason you did.
What to look for
- Check the millimetre sizes, not the marketing: 3.23, 3.30 and 3.45 mm cover most modern wheels, and a tool missing one will eventually meet a wheel it cannot turn.
- Look for a four-sided option: three sides is quicker, four spreads the load and is what saves a stiff or corroded nipple.
- Heat treatment is a durability claim worth having: a wrench opening is a precision shape, and an untreated one opens up with use.
- One piece or three is a storage decision: a single flat tool stays with a wheel bag, a handled set stays on a bench.
- Handles buy leverage, flat bodies buy access: decide which your wheels actually need before paying for either.
- Treat double-ended wrenches as second tools: they exist for access, not for coverage, and the size they omit is the one that catches people.
Our final take
Buy the Pedro’s Pro Spoke Wrench Set of 3 if you are going to true wheels properly. It covers all three common sizes in heat-treated tool steel and is the only tool here offering a four-sided grip, which is the difference between turning a stiff nipple and rounding it. If you want one tool and one purchase, the Park Tool SW-7.2 carries the same three sizes in a flat body for less, and it is the better thing to keep in a wheel bag. The Pedro’s Multi Spoke Wrench is the same idea in a nicer shape with a lifetime warranty behind it. Leave the SW-9 until you already own a wrench covering 3.30 mm, because as good as it is at tight access, it cannot turn a size you will meet.
Questions, answered
How do I know which nipple size my wheel uses?
Measure across the flats with calipers, or try wrenches until one seats without any rock. The three common sizes here differ by fractions of a millimetre, so a wrench that is one size too large will feel like it fits and will round the nipple under load. If you are buying blind, buy a tool that carries all three rather than guessing, which is most of the argument against the double-ended wrench in this comparison.
What is the difference between a 3-side and a 4-side wrench?
It is how many faces of the nipple the opening grips. Three sides slide on and off quickly, which suits a long truing session on nipples in good condition. Four sides spread the load over more of the nipple, which matters when one is stiff, corroded or already slightly rounded. The Pedro's Pro Spoke Wrench carries both on each tool, which is why it is the pick here.
Can I true a wheel without a truing stand?
You can do a usable job with the bike in a stand and the brake pads or a zip tie as a reference, and for a minor wobble that is often enough. What you give up is a consistent reference for dish and for lateral versus radial error, which is why wheelbuilders use a stand. A spoke wrench that fits properly matters more than the stand, because the stand cannot rescue a rounded nipple.
Why do people round off nipples?
Usually a wrench that is the next size up, applied with force. Nipples are soft by design so they deform rather than the spoke, and once the flats go the wrench simply spins. A correct-size wrench, ideally with a four-sided grip on anything stiff, is the whole prevention. Penetrating oil and patience does the rest.
Do bladed spokes need anything extra?
They need a spoke holder, which grips the flat of the blade to stop the spoke twisting as you turn the nipple. Without one you wind tension into the spoke rather than into the wheel. Park Tool mentions this for the SW-9 specifically, because a double-ended wrench is easier to use one-handed while the other hand holds the blade.
Deciding between the top two? See our head-to-head: Pedro's Pro Spoke Wrench - Set of 3 vs Park Tool SW-7.2 Triple Spoke Wrench.
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