Like this site? Help us to make it better.

Crank Brothers M10 multi tool



Good everyday tool but longer 8mm key would steal a march over competitor designs

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

What the scores mean

Good scores are more common than bad, because fortunately good products are more common than bad.

  • Exceptional
  • Excellent
  • Very Good
  • Good
  • Quite good
  • Average
  • Not so good
  • Poor
  • Bad
  • Appalling

Crank Brothers M10 is equipped to address most roadside fettling without the weight or encumbrance of chain-tool, spoke keys or wrenches. It's a delight to use and offers plenty of torque for those more awkward fixings. Complete with the same CNC machined, gold anodised aluminium sidebars and lifetime warranty, on many levels there's little to dislike, although a longer 8mm Allen key would've been more appropriate rather than simply scaling down the one on the M17.

Saving a mere 13 g over its bigger sibling, we've the usual suspects-1, 2,3,4,5,6 and 8mm Allen keys, torx wrench for discs and two sensibly sized Philips and flat screwdrivers-a comprehensive skeleton crew for road or hybrids all made from the same hardened, high tensile steel (although curiously, our test samples had some deep scratches in the curves). Fitting beautifully in the palm, its narrower profile is more convenient in tight corners, knurled bars preventing slippage at the crucial point when tightening twin bolt saddle clamps, weathered carrier fixings. Unlike cheaper offerings, there's no hint of whip under pressure, neither have we come close to rounding fasteners.

My major frustration (which isn't confined to the M10) arose when diagnosing a phantom squeak, driving me close to distraction on a midnight meander. Having nipped the saddle, cleats, mudguard and carrier bolts snug, persuading the drive side crank bolt home was frustratingly slow. Forgivable on the M17 but there was ample room to make the bit an inch or so longer without fouling the design or placing disproportionate stress upon the tool.


Good everyday tool but longer 8mm key would steal a march over competitor designs. test report

Make and model: Crank Brothers M10 - multi-ten

Size tested: m10 - multi ten - 10 featured lightweight tool -gold

Tell us what the product is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?

"The Multi 10 is compact and light with the 10 most common tools needed. Strong aluminium frame bars keep the tool light and easy to use".

A pretty faithful description

Tell us some more about the technical aspects of the product?

weight - 124g

length - 3.5" / 89mm

frame - 6061-T6 aluminium

tools - 6051 high tensile steel

hex wrenches - #2, 2.5, 3, 4, 5, 6, 8

screwdrivers - phillips, flat

torx - t-25

warranty - lifetime

Rate the product for quality of construction:

Solid and backed by a lifetime warranty.

Rate the product for performance:
Rate the product for durability:

Unlikely to break under normal circumstances.

Rate the product for weight, if applicable:

130g by my scales.

Rate the product for comfort, if applicable:
Rate the product for value:

Tell us how the product performed overall when used for its designed purpose

Being a scaled-down version of the M17, the tool is generally a joy to use and makes light work of generic fettling. However,common to many multi-tools, the stubby crank bit was something of a token-better than nothing in an emergency but tedious nonetheless.

Tell us what you particularly liked about the product

Chic design, good build quality and sensible tool sizes.

Tell us what you particularly disliked about the product

stubby crank tool.

Did you enjoy using the product? Yes

Would you consider buying the product? Quite Possibly

Would you recommend the product to a friend? Yes, if they wanted a capable compact tool

Overall rating: 7/10

About the tester

Age: 37  Height: 1m 81  Weight: 70 kilos

I usually ride: Rough Stuff Tourer Based around 4130 Univega mtb Frameset  My best bike is: 1955 Holdsworth Road Path and several others including cross & traditional road

I've been riding for: Over 20 years  I ride: Most days  I would class myself as: Experienced

I regularly do the following types of riding: cyclo cross, commuting, touring, fixed/singlespeed, mtb,

Shaun Audane is a freelance writer/product tester with over twenty-eight years riding experience, the last twelve (120,000 miles) spent putting bikes and kit through their paces for a variety of publications. Previous generations of his family worked at manufacturing's sharp end, thus Shaun can weld, has a sound understanding of frame building practice and a preference for steel or titanium framesets.
Citing Richard Ballantine and an Au pair as his earliest cycling influences, he is presently writing a cycling book with particular focus upon women, families and disabled audiences (Having been a registered care manager and coached children at Herne Hill Velodrome in earlier careers)

Latest Comments