We test mountain bike multi-tools. Light enough to put in your pack and carry all day, useful enough to fix a multitude of sins if your bike breaks

Get yourself equipped with one of the best mountain bike multi-tools. One of the cornerstones of mountain biking is self-sufficiency; specifically the ability to get out of a fix and carry out emergency repairs on the trail. To make repairs and adjustments you’ll need a trail tool. Most of based around old-fashioned Allen key clusters, improved by the addition of screwdrivers, Torx keys and spoke wrenches. Ideally they will include 16-22 items, with the most essential being a chain splitter, so you can break and join the chain if it has snapped, or you have to untangle a busted mech. Most tool companies make this type of tool – we have these on test here too.

Read more: What to take with you on a mountain bike ride

There are also many alternative options and we’ve reviewed those too. They range from a multi-plier (popularly known as a Leatherman or Gerber) to a fold-up chain tool. The former is perfect for those ugly jobs, like bending a mech hanger straight, and we’ve included the latter simply because most of the trail tools’ built-in miniature chain splitters are difficult to use.

The best mountain bike multi-tools in 2021

  • Topeak Mini Pro 20, £31.99 – Best Buy
  • Leatherman Crunch, £149.95 – Best Buy
  • Blackburn Wayside 19, £32.99
  • Park Tool MT40, £49.99
  • Pedros ICM, £29.99
  • Fabric Chamber, £34.99
  • Fix It Sticks Mountain Tool, £49.99
  • Topeak Survival Gear Box, £27.99

‘View Deal’ links

You will notice that beneath each mountain bike multi-tools summary is a ‘View Deal’ link. If you click on one of these links then mbr may receive a small amount of money from the retailer should you go to purchase the product from them. Don’t worry, this does not affect the amount you pay.

Topeak Mini Pro 20

Price: £31.99
Weight: 153g
Tools: 2, 2.5, 3, 4, 5, 6, 8 and 10mm Hex keys, T25 Torx, flat and Phillips screwdrivers, chain tool, spoke wrenches, chain hook, bottle opener, chain pin tool

With its chrome finish, this tool has real bling factor, and should stay that way protected by its own neoprene pouch. The tools are all quite stubby, but there are plenty of them, including a neat chain breaker, which sports four spoke keys, a chain hook and a 3mm Hex. All the Allen sizes needed for repairs and adjustments are included, even a 10mm for crank bolts and L-shaped 2mm for adjusting the reach on your brake levers. The only redundant tool is the tyre lever – it’s too short and sharp, and wouldn’t want it anywhere near carbon rim. That’s our only criticism though, because the Mini Pro 20 is a great tool and easily the best on test.

Leatherman Crunch

Price: £149.95
Weight: 164g
Tools: regular and locking pliers, wire cutters, wire stripper, knife, ruler, pin vice bottle opener, file, three flat-heads and one Phillips screwdriver

Instead of the needle-nosed ends you find on regular Leatherman tools, the Crunch effectively has a pair of mole grips stuck to the top and, as we know, they’re great for workshop bodges, never mind trailside repairs. If you break, bend or bust something, this is the tool that will sort it out. In addition, it has a ton of other features, including a knife, a couple of screwdriver and a nail file. Also, if you remove the threaded bolt from the handle, you’ll see a 1/4in bit holder, making the Crunch one of the most versatile tools here and easily a test winner.

Fix It Sticks Mountain Tool

Price: £49.99

Fix It holds the bits in a barrel magnetically and the best thing is sticks can’t waggle loose at the pivot points like practically every flip-open multi tool we’ve ever owned has over time. Just about the only complaint then is the whole package comes up a little heavy and expensive compared to a folding tool.

Read review of Fix It Sticks Mountain Tool

Topeak Survival Gear Box

Price: £27.99

Aside from a lack of claimed seatpost compatibility (because everyone runs dropper posts these days), this is a neat bit of kit just to sling in your pack that will resist rusting and getting gunked up with crud way more than a ‘standard’ multi-tool.

Read review of Topeak Survival Gear Box

mountain bike multi-tools

Blackburn Wayside 19

Price: £32.99
Weight: 195g
Tools: 2, 2.5, 3, 4, 5, 6 and 8mm Hex keys, T25 and T30 Torx, flat-head screwdriver, spoke keys, chain tool, chain hook, pad separator, Presta valve core tool, serrated knife.

Attached to one side of the Blackburn Wayfarer is a set of ball-end Allen keys. These are perfect for working in confined spaces, and make adjusting brake lever-reach a doddle. The chain splitter features the important secondary position for loosening stiff links, but unfortunately the handle is too small, making it uncomfortable to use. Also included on this part are the spoke keys, Presta valve core remover, and a handy disc splitter wedge. The serrated blade is super-sharp and there’s a decent-sized hook for holding the chain together. A great tool, but just misses out on the top spot due to the undersized chain splitter.

mountain bike multi-tools

Park Tool MT40

Price: £49.99
Weight: 238g
Tools: 2.5, 3, 4, 5, 6 and 8mm Hex keys, T25 and T30 Torx, combo screwdriver, chain tool and CO2 chuck

With its contoured sides, Park Tool’s new MT40 is one of the most comfortable tools to use. It’s also pretty burly, which means there’s zero flex when you have to put a lot of flex through it. Most of the rival multi-tools tested here have a wider range (the lack of a 2mm Allen key is a real oversight) but the ones on the MT40 are all superb quality. The chain breaker is actually a mini version of the CT6, reviewed lower down this page, and just as effective, although you will have to loosen stiff links by hand as it lacks a secondary shelf. There’s also a CO2 chuck supplied for emergency inflation.

mountain bike multi-tools

Pedros ICM

Price: £29.99
Weight: 183g
Tools: 2, 2.5, 3, 4, 5, 6 and 8mm Hex keys, T25 Torx, flat and Phillips screwdrivers, chain tool, bottle opener, two tyre levers, spoke wrenches

Unfortunately, the tyre levers clipped to either edge of the ICM, spring off when trying to tighten anything with the Allen jkeys. That said, compared to the miniature levers elsewhere, they work and can actually get a tyre off without scuffing a rim. Also slipped into the body of the tool is spoke key, which actually feels like a proper workshop item. There’s a third, Mavic-specific spoke key on a long arm but truing is a chore as you can’t turn it very far between the spokes without having to remove it. All the Allen keys are a good length, so you can access those tight spots, and the chain splitter has the second gate for stiff links, but the short handle means we had to grip hard to break a chain.

mountain bike multi-tools

Fabric Chamber

Price: £34.99
Weight: 145g
Tools: 2, 2.5, 3, 4, 5, 6 and 8mm Hex bits, flat and Phillips screwdrivers, T10 and T25 Torx.

Hidden inside the Chamber are 13 tools: six extra-long bits with a tool on either end and a hollow 6mm tool that slides over the 5mm Allen key. The bits slot into the T-Bart head and allow you to ratchet tight disc rotors, stem bolts… you name it. The Chamber is the perfect tool for adjusting the reach on brake levers and accessing the angled bolts on a seat post clamp. The best bit is, you just reverse the tools to back the bolts out the other way. It’s not a cheap tool, but it looks futuristic and we think it’s actually a shame to keep it hidden in your pack.

Know your mountain bike multi-tools:

mountain bike multi-tools

Protective case

Mountain bike multi-tools will be rattling around in your pack getting scuffed and wet, so some form of holder or case is handy.

Spoke keys

These are great for straightening a buckled wheel, but if they’re too fat you won’t be able to get them between the spokes and it’ll make truing a laborious chore – the narrower this tool, the better.

Chain breaker

A chain splitter is essential, but once you have joined a chain, the link will be stiff, so you need to work it loose. A second gate, or position on the bed of the tool, allows you to do this easily, but many of the tools in this test don’t have them. Also very few have replaceable pins, co once this is bent, the splitter is next to useless.

Tool length

Short tools are compact, but a long tool offer greater leverage for stubborn bolts, and car reach into areas without the body of the tool fouling on the component or frame.

Tyre levers

If these are included, they are usually tiny and won’t have enough leverage to release the bead. Our advice is to always carry a separate lever, like Topeak’s excellent Shuttle 1.2 lever.

Torx key

This is a star-shaped tool, and the common size used on mountain bikes is a T25.Most disc rotors use this size, and SRAM also uses it for the derailleur mounting bolt and the brake lever clamps.

Allen keys

These can be long, short, L-bend and, in some cases, separate. the most important thing is you have all the sizes, including a 2, 2.5, 3, 4, 5 and 6mm. Some tools have an 8mm or 10mm, but it’s often too short to remove a pedal or tighten a crank – the two components the commonly require this size.