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Best multi-tools for mountain biking: multi-functional tools for trailside repairs

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Best multi-tools for mountain biking
(Image credit: Future)

It seems like everyone makes some sort of multi-tool to help you fix your bike when you’re out riding. Decades of riding and trailside-wrenching have taught us that nothing is more frustrating than a tool that doesn’t work, doesn’t do the job you need it to, or actually causes damage. Unfortunately, there are loads of these about, so we’ve been extremely careful in curating this list of the best multi-tools for mountain biking.

We’ve looked at everything from bargain budget options to more premium-priced tools. There are tons of multi-tool options out there, but our selections are some of the best from a quality, functionality, and ease of use perspective. At the bottom of this page, we have a handy guide of things you should keep in mind when buying a multi-tool for mountain biking. 

The best multi-tools for mountain biking 

Best multi-tools for mountain biking: Birzman Feexman E-Version 15

(Image credit: Birzman)

Birzman Feexman E-Version 15

Very light for a comprehensive set of high quality tools at a good price

Size: 70x50x15mm | Weight: 180g | Features: 2, 2.5, 3, 4, 5, 6 and 8mm Allens. T25, Flat, Philips, Chain Tool, 3.2, 4.3, 4.4, Mavic spoke

Excellent quality essential steel tool selection
Slick looking, lightweight, well priced package
We’d reverse the hooked Allen key

Birzman is big on slick design (some of its workshop tools and pumps are positively sculptural) and this neat tool flat packs all the essential tools into your pocket. The machined steel chain splitter includes spoke flats that are accurate enough for trailside wheel truing even with alloy nipples. The broad, curved handle adds useful leverage when you’re pushing chain pins out too. All the tools are chrome vanadium steel for impressively tough and tight-fitting performance and they also resist corrosion really well. That makes the Birzman a good choice if it’s likely to be strapped externally and getting wet and filthy on a regular basis. 

Generous tool length means the wide body is less of an issue in tight spaces. They’ve missed a slight trick by not bottoming out the right-angled 2mm Allen key onto the chain splitter, so there is a chance it can stick up slightly but if it really bothers you, just disassemble the tool and reverse it. Otherwise, it’s really light for a comprehensive set of high-quality tools, and it’s a good price too. 

Best multi-tools for mountain biking: Topeak Mini PT30

(Image credit: Guy Kesteven)

Topeak Mini PT30

Concentrated golden nugget of tools

Size: 7.5x4x2cm | Weight: 170g | Features: 2, 2.5, 3, 4, 5, 6, 8mm Allen keys, 10mm Allen socket, T10, T15, and T25 Torx wrenches, 15g/14g/Mavic M7 and Shimano 4.5mm spoke wrenches, chain tool, and Phillips & flathead screwdrivers

Super comprehensive tool selection
Quality tools
Genuinely useful extras
Includes tubeless tools
Compact dimensions
Limited size
Pricey

Topeak probably produces a bigger range of multi-tools than anyone else we can think of including the legendary split body Alien II, but the Mini PT30 really shines bright in its range. 

With seven different Allen keys, three different Torx wrenches, both a Phillips head and flathead screwdriver, plus even more functions, the PT30 can fix nearly any trailside issue you run into. 

One of our favorite features of this tool is the chain tool. There's even space to store a master link in case things get ugly on the trail. This is a feature we've never seen before, but one that's genuinely useful.

Best multi-tools for mountain biking: Lezyne RAP 15 CO2

(Image credit: Lezyne)

Lezyne RAP 15 CO2

Everything you could want, plus great build quality too

Size: 67x50x25mm | Weight: 150g | Features: 2, 3, 4, 5, 6 and 8mm Allen. T25 and T30, Philips, Chain Tool, 14, 15, Mavic spoke, CO2 head

All the tools you need plus a bonus CO2 inflator head
Decent quality at a cracking price considering the CO2 bonus
No 2.5mm Allen key
Broad body can cause fit issues and comes loose occasionally

Winning the everything-you-could-want-plus-a-couple-of-neat-extras award, and in a quality package to boot, is the RAP 15 C02 from Lezyne. Unless you particularly need a 2.5mm Allen key (some brake adjusters and pad pins are needy that way) then this light and reasonably compact tool has you sorted. You also get a T30 Torx key for the back of some crank bolts and a detachable head for a C02 canister. Considering they normally cost at least £10 that makes the RAP look a bargain and from experience the tools last reasonably well over time. They’re a decent length for reaching awkward places too, although the wide-body can get irritating in really tight spaces and you’ll occasionally need to tighten the end bolts that hold it all together. There are tons of other Lezyne options in all sizes and materials including the RAP 21 C02 which adds a 2.5mm Allen key, flat screw, bottle opener and a metal tire lever, but the 15 is definitely our sweet-spot choice. It even comes in four different colors and you can buy spares separately

Best multi-tools for mountain biking: Crankbrothers M17

(Image credit: CrankBrothers)

Crankbrothers M17

Great quality tools but slightly weighty

Size: 89mm | Weight: 168g | Features: 2, 2.5, 3, 4, 5, 6, 8 Allen keys, 8, 10mm open wrenches, Phillips and flathead screwdrivers, spoke wrenches, T25 Torx

Really nicely designed, compact but high leverage design
Excellent quality versions of all the essential tools
Slightly weighty
Not the cheapest

Even when its pedals and dropper posts were going pop in hours (it’s OK the current models are super reliable now) Crank Brothers’ multi-tool still held onto its iconic status. In fact, losing my original one from Interbike sometime last decade is one of my saddest moments. So what’s so good about it? It’s long enough to get a proper torque on through the eight for cranks and pedals, and the tools are long and really good-quality high tensile steel too, still fitting into fixings accurately and securely even after they start to look a bit rusty a few years in. The chain tool is a particularly nice-looking forged piece and includes open eight (great for disc brake hoses) and 10mm wrenches that are tough and accurate enough to be safe to use. Considering it’s such a class act, pricing is acceptable too.

Best multi-tools for mountain biking: Merida 20 in 1 multi-tool

(Image credit: Graham Cottingham)

Merida 20-in-1

Robust and neatly sized tool for mid-ride repairs

Size: 7.4x5.2x1.4cm | Weight: 130g | Features: 2/2.5/3/4/5/6/8/10 mm Allen keys, cross and flat-head screwdrivers, T10/T25 Torx keys, tire lever, a tool to push back disk brake pads, spoke keys (Mavic M7/Shimano 4.6, 14 and 15G), valve adaptor and a small ruler for sag measurements

Good selection of tools including T10 and T25
Tool layout
Durable
Compact
Metal tire levers could damage rims

Merida's multi-tool may look rather standard, but its range of functions and ease of use make it a simple trailside fixer. 

The size of the tool means it provides decent leverage yet you can easily slip it into your pocket or riding pack. As the name suggests, there are 20 different tools including multiple Allen keys, Torx wrenches, screwdrivers, and spoke wrenches. One thing that is missing is a chain tool, but that's included in Merida's even bigger 24-in-1 multi-tool. 

The tool also includes a tire lever, but it's made out of metal so we would carry a separate plastic one to avoid damaging your rims. This multi-tool is simple and can get your repairs sorted out quickly, which is really all you need in a multi-tool. 

Best multi-tools for mountain biking: Fix Mfg Wheelie Wrench Pro

(Image credit: Fix MFG)

Fix Mfg Wheelie Wrench Pro

A compact tool that punches well above its diminutive weight in terms of features

Size: 50x40x15mm | Weight: 120g | Features: 2, 2.5, 3, 4, 5, 6 and 8mm Allen. T25, Flat, Philips, Chain Tool, 14, 16 spoke, 8 and 10mm open wrench, bottle opener, Presta valve tool, brake pad wedge, chain link storage

Super neat and compact design packs in a ton of features
Split design and belt buckle options are uniquely user friendly
8mm lacks leverage
Expensive

The Wheelie Wrench Pro looks expensive for something of this nature but it’s fully loaded with all the essentials, plus useful extras, and works remarkably well for a tiny tool. This Californian-designed Kickstarter product uses a really neat two-piece design with the single-ended Allen key section. This clips onto a chain splitter piece that also includes the 8mm Allen key head, open wrench, flat screwdrivers, box wrench and rotor straightening slot built into it. There are even magnetic holders for a chain quick link. Splitting them apart makes them easy to use, with long tools for plenty of reach for leverage on everything but the 8mm. 

Details like the smallest Allen keys sneaking inside cut-aways on the bigger keys make it a super-compact package and Fix Mfg produces a range of belt buckle holsters and strap clips that make it blissfully portable and a nice statement piece if you like to show off your biking life subtly. The range also includes the Wheelie Wrench without the chain splitter and there are Snowboard and Skateboard versions, too.   

Best multi-tools for mountain biking: Fabric 16-in-1

(Image credit: Fabric)

Fabric 16-in-1

A tidy design that delivers a lot of functionality

Size: 70x45x10mm | Weight: 110g | Features: 2, 3, 4, 5, 6 and 8mm Allen. T25, Philips, Chain Tool, 13, 14, 15, 16 spoke

Full essentials feature set
Lightweight and compact design
8mm and chain tool are on the same end
Very similar to much cheaper direct buy designs

Fabric does some very fancy tool designs like the ratchet-headed ‘Chamber’ bullet or the colorfully coded tools of the 11-in-1 but the more conventional 16-in-1 is our pick from its range. It’s very similar to the Love Mud in design with a very flat profile and short, steel tool bits fanning out from both ends. Short length can create some reach problems, but the narrow, shallow body reduces interference compared to bulkier designs. 

It also has a short handle on the chain splitter which means it needs holding very firmly and the 8mm head sits at the same end as the chain splitter which means you can fold it out for extra leverage on pedals/cranks etc. The tool pins are thread-locked into D section alloy side plates to keep them secure though and the whole tool is very light considering its comprehensive feature set.

Best multi-tools for mountain biking: Ryder Nutcracker

(Image credit: Aaron Borrill)

Ryder Nutcracker

The tool you never knew you needed

Size: 75x6x20mm | Weight: 8g | Features: valve-core remover, brake pad spreader, spare valve core

Diminutive and easy to store
Pad spreader
Valve-core remover (spare valve core)
Lacks a dedicated casing

While not a dedicated multi-tool by any means, we couldn't leave the Ryder Nutcracker off this list - it's that good.

The Nutcracker is one tool every cyclist - especially those who run tubeless setups - should consider keeping in their saddle bag or pouch. Overlooked by many, the Nutcracker can save you from calling an Uber should you ever experience any trail-side wheel woes such as a broken valve or blocked valve core. 

Diminutive in size, the Nutcracker can be used in many ways - not only is it dual-sided, but it can also loosen and remove tubeless wheel nuts and valve cores as well as double up as a brake pad spreader. Furthermore, it also houses a spare core within the tool body - very nifty indeed.

Best multi-tools for mountain biking: Stique ML125 14 Function

(Image credit: Stique)

Stique ML125 14 Function

British design which offers tire levers at the expense of a few allen keys

Size: 70x40x11mm | Weight: 180g | Features: 4 and 5mm Allen. T25, Philips, 14, 15 spoke, Chain Tool, bottle opener

Super tough tire levers with neat built-in storage and tools
The tools you get work surprisingly well
You’ll probably want to add more Allen keys
UK made means higher cost

We’ve seen all kinds of tire-lever-meets-tool combinations over the years but this British-designed-and-made, Kickstarter funded bundle from Stique is potentially a very neat answer to most trail repair needs in these tubeless tire and electrified gearing times. That’s because it’s based around three super tough plastic tire levers which click together magnetically. 

The kit doesn’t come with small (2-3mm) or big (6-8mm) Allen keys, but you can always carry extra bits to stick in the magnetic holder. It’s got the most commonly used 4mm and 5mm Allens, plus a T25 and Phillips head screwdriver anyway, so if you ride MTB and road it’s got most worries covered. The three tire levers that form the body are properly tough items that will twang any tubeless tire on or off the tightest rim with ease. The slimline chain device is very slick and the lever tips include steel-reinforced spoke key inserts and a bottle opener. There are £/€ coin holders in two of the levers and there’s another for a CR2032 battery if you want to carry a spare. 

Best multi-tools for mountain biking: Specialized SWAT Conceal Carry MTB

(Image credit: Specialized)

Specialized SWAT Conceal Carry MTB

Ingenious design but expensive

Size: Small enough to fit inside your steerer tube | Weight: 250g | Features: 3, 4, 5, 6 and 8mm Allen, T25, Chain Tool

Ultimate pop-up micro tool convenience
Replaces star fangled nut in fork
Chain splitter accessed by pulling the whole system out of the steerer
Extremely expensive on a purely functional basis

Specialized produces a range of conventional tools including the very good EMT 12, but we can’t help but love the ingenuity of the Conceal Carry even if the price is huge and the chain splitter awkward to use. The CC replaces the conventional star fangled nut in alloy steerer tubes (it won’t work with closed-crown carbon forks) with a long threaded rod and clamp plate at the base and the tool caddy section at the top. You choose the right length shaft and then screw it into the upper to preload the headset bearings, then bolt up the stem like a conventional headset system. 

This leaves the top section clear to include a spring-loaded carrier for the small SWAT MTB Tool Allen key penknife, which pops up ready to use when you swing open the rotating lid. This only covers the bare essentials but the tools are good quality corrosion-resistant steel. There’s also a chain splitter built into the top section that uses the thread-in preload shaft as the driver pin, but that means disassembling the whole set up to use which is hardly convenient. The whole setup is very expensive (the tiny SWAT tool is expensive even on its own) and heavier than a simpler design, but it does come as standard on some Specialized bikes which is a real score. 

Multi-tools: what you need to know 

1. Price

In theory, the more you pay, the more functions you get. However, as you can see from looking at the budget LoveMud Trailside 16 or the More expensive Fix Mfg Wheelie Wrench Pro, there’s a very wide range of prices for seemingly very similar tools. We’d beware of going too low on cost though as some cheaper tools use poor quality materials, and it only takes one slip from a soft or undersized Allen key to round off a bolt and create a serious problem. On the other side, some tools list a load of ‘functions’ like different-sized spoke wrenches that probably aren’t functional at all so check you’re not paying extra for stuff you don’t need. 

2. Functions

We reckon there’s a bare minimum function list if you want to cover most mechanical problems though and that’s 4, 5, 6, and 8mm Allen wrenches, a Torx T25 wrench and a chain splitter. To be honest, we don’t know a single tool that’s just boiled the useful basics down to that though so expect to have 2, 2.5, 3mm Allens, plus flat and cross-head screwdriver bits along for the ride. Alternatively, you can pick up a basic Allen key and T25 ‘knife’ for almost nothing (they come free with a lot of bikes) and then just carry a separate chain splitter.

3. Design

How the tool is put together makes a big difference, too. The vast majority come in a ‘penknife’ format with two rows of flip-out tools between two side plates. It’s convenient, compact, easy to make and generally easy to use making it the format most of our favorites come in. Be careful of short tools on really small sets though as they can often lack the reach to get into the spaces you need. Broad bodies can also be a pain in the butt by reducing clearance when you’re trying to turn the tool in a tight space. Watch out for right-angled tools or anything else projecting from the body if you’re going to be stuffing it in your pocket and potentially landing on it. Our other gripe is having the 8mm Allen key on the same end as the chain tool, rather than the opposite end where it can be unfolded and used for extra leverage.

‘Caddy designs’ where separate bits slot into a handle look cute in the shop and we love pocket ratchet tools for home wrenching. However, we’ve spent too long searching for dropped bits in long grass or muddy puddles to recommend them for emergency trailside use though.

4. Extras

There are some useful extras included with some tools though. Our favorites include bottle openers (which often work as brake pad wedges too) and detachable heads for CO2 cartridges. We used to think a knife blade was a great idea for looking rugged until a tool we had with one turned floppy and kept trying to amputate our fingers every time we went for an Allen key.

Guy Kesteven

Guy Kesteven is Bike Perfect and Cyclingnews’ contributing tech editor. Hatched in Yorkshire he's been hardened by riding round it in all weathers since he was a kid. He got an archaeology degree out of Exeter University, spent a few years digging about in medieval cattle markets, working in bike shops and warehouses before starting writing and testing for bike mags in 1996. Since then he’s written several million words about several thousand test bikes and a ridiculous amount of riding gear. To make sure he rarely sleeps and to fund his custom tandem habit he’s also coughed out a handful of bike-related books and talks to a GoPro for YouTube, too. We trust Guy's opinion and think you should, too.


Rides: Pace RC295, Cotic FlareMax, Specialized Chisel Ltd MTBs, Vielo V+1 gravel bike, Cannondale Supersix Evo Dura-Ace Di2 Disc road bike, Nicolai FS Enduro, Landescape custom gravel tandem

Height: 180cm

Weight: 69kg