The best Allen keys and multi-tools for cycling

The vast majority of bike adjustments are made using an Allen key. At home, it's best to use a full sized tool - as the likelihood of rounding a bolt is reduced, but whilst on the go, most cyclists carry a multi-tool in their jersey pocket or saddle bag.

Allen, or hex, key sets vary in quality. Spend more and you'll enjoy a snug fit, reducing the chance of damage to the bolt. Those with a 'T' or 'P' handle as opposed to the standard 'L' shape allow greater grip on the handle, and you cal also get 'three way' versions with three sizes on one handle.

An Allen key set is not the same as a Torque wrench - which you use to ensure the bolt is tight enough without putting too much stress on the component in question.

Some bolts use a star shaped Torx head, which requires Torx keys - though these are slightly less common.

Multi-tools vary dramatically in size, weight and price. Some riders prefer to carry just a couple of tools in a small, lightweight package, whilst others would rather take a more hefty tool with almost every potential get-out-of-jail free card to hand.

We've rounded up some of the best tools below - and there's more information on what to look for at the bottom of the page.

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Our pick of the best Allen/hex key sets

Wera make excellent, more than workshop quality, tools - and this set of L shaped hex keys are no exception.

The stainless steel version provides a greater contact with the surface of the screw head, and you get a ballpoint on the long arm. The colour scheme makes it quicker and easier to spot the correct size, and the tools come in a handy clipped holder.

These Park Tool hex keys come with a P-handle, making them easier to get a good grip on.

They come in sizes 2-10, which should answer most bike requirements, and are supplied in a handy stand which also has space for some three-way handle tools, too.

Another Park Tool option, but this time with just 3 common sizes: 4 and 5mm hex, plus a T25 Torx. This should have you covered for the vast majority of tasks, and the handle makes for an easy grip.

Our pick of the best multi-tools

The Park Tool IB-3 multi-tool brings the workshop to the road with a host of classic making it stand out among the rest.

With a beautiful polished chrome finish and a leather-esque sleeve, you'd be forgiven for thinking the Lezyne SV11 multi-tool is all about the looks but it's practicality holds true.

This fully equipped multitool is neatly designed and filled with tools you never thought you'd need.

As the name suggest this little tool box houses a 15 function multitool at a very attractive pricetag.

If you're looking for a meaty tool, Pedro's your guy. Going for quality over quantity, the Pedros RxM multi-tool has a clever design that offers 12 properly useable functions all neatly packaged together in a composite body.

Crank Brothers produce this dependable tool with all the feature you could ever possibly need wrapped up in a classic Crank Bros design.

What

Like a Swiss Army knife, a good cycling multi-tool should allow you to effectively deal with any maintenance issues you might have whilst out on a ride or even as a do-it-all workshop tool.

A well made and thought out multi-tool should be practical enough to enable the use of all the features and not have ‘token’ features. They should be comfortable in use and the tools of sufficient quality so as to not damage precious parts.

Why

A good multi-tool will accompany you on all of your rides so needs to be reliable. You should be able to practically strip a bike down completely using one so it should include all of the correct sized Allen keys and Torx keys required for modern bikes along with others such as screwdriver heads or a chaintool and not have anything obsolete or impractically sized.

How

The cycling multi-tools were used for a variety of tasks both out on rides and in the workshop to check functionality, ease of use, comfort, weight, and durability.

Key Features

1. Practicality – there is no point having 20 different functions on the multitool if they cannot be used properly.
2. Versatility – a good cycling multi-tool should be allow you to fix most mechanical issues whilst out on a ride.
3. Durability – The tools should be strong enough to withstand repeated use and not fail you when needed most.