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  • Mercury Wheels - M5 Clincher Wheelset - Black
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  • Mercury Wheels - M5 Clincher Wheelset - Black

Mercury Wheels M5 Clincher Wheelset

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    • Black, Shimano/SRAM, New Brake Track
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    76 Reviews


    The god of stealing races.

    It's appropriate that Mercury Wheels' name and logo reference a Roman god who is the patron of, among other things, travelers and thieves. Atop Mercury's M5 Clincher Wheelset, Eric Marcotte journeyed from his day job in Arizona to Chattanooga, Tennessee to nab the 2014 US national championship ahead of the pros of the European peloton. It's the ultimate race wheel for the working cyclist.

    If you're in the market for deep dish carbon rims, then you've probably already made the assumption that the number in the M5's name denotes a depth of 55mm. The rim's width is left out, though, and rim width is a big deal these days. The M5 is a solid 23.5mm wide, which means you can run lower PSI for a more comfortable ride that corners with unparalleled confidence. Wider rims also have some counter-intuitive effects when compared to those standard 19mm rims: they actually decrease rolling resistance and increase aerodynamics.

    The M5s' construction uses Mercury's Dual Carbon Layer Process, or DLP. DLP blends high- and mid-moduli carbon fibers to tease out the best balance between the lightweight and stiffness of the former and the fatigue-resistance and durability of the latter. DLP has also recently been updated with a newly engineered brake track material, improving stopping power over the previous, basalt-infused design. This increased confidence goes a long way toward addressing the poor braking that is one of the most common critiques of carbon wheels.

    The aerodynamic benefits of a deep dish rim are further complemented by Mercury's Seamless Transition Technology (STT), which integrates the brake strip with the rest of the rim in order to eliminate any obstructions to wind flow and reduce drag-causing turbulence. The result of this construction is a wheel that balances the above qualities with considerations of weight for what Mercury claims is its "most popular wheel by far."

    The M5s are finished off with Sapim's indefatigable CX-Ray spokes and Mercury's own hubs. The rear hub includes a generous six pawls for an engagement that's as close to immediate as anything we've seen on the market today, and the front hub has an extra-wide 72mm flange for reduced flex under hard efforts and confident stability at speed. Both hubs have a 15mm axle that reduces to accommodate a traditional quick release and two and four oversized bearings in the front and back, respectively.

    The Mercury M5 Clincher Wheelset comes with a Shimano/SRAM 11-speed compatible freehub body and includes skewers, valve extenders, brake pads, and rim strips.

    • Steal a march on the competition with carbon race wheels
    • Blend of carbon moduli to balance stiffness and strength
    • Brake tracks incorporate basalt fibers for better stopping
    • Integrated brake track reduces drag-inducing transitional ridges
    • Wide rims straighten allow lower PSI for smoother, faster ride
    • CX Ray Spokes and wide flanges for stiffer overall system
    • Mercury Wheels proves you don't need to spend a fortune to race on carbon
    • Item #MCW0001

    Tech Specs

    Rim Material
    carbon fiber
    Wheel Size
    700 c
    Tire Type
    Rim Depth
    55 mm
    Rim Width
    [external] 24 mm
    Brake Compatibility
    Mercury Pro
    9mm quick-release
    Sapim CX-Ray
    Spoke Count
    20 / 24
    Claimed Weight
    [set] 1,625 g
    Recommended Use
    Manufacturer Warranty
    2 years

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Excellent Value, Great In Cross Winds!

    • Familiarity: I've put it through the wringer

    Coming from only using stock wheels on my Trek, these are an incredible upgrade. The aerodynamic advantages are really noticeable, the wheels are so stiff they encourage you to really put power through the pedals, and the value is unbeatable. Very well built wheelset.

    Outstanding full carbon wheelset!

    • Familiarity: I've put it through the wringer

    Couldn't be any happier. Almost as light as wheels twice the cost. Great on the flats and easy climbing. Staying strong after almost 3 yrs now. No issues at all. Looks and feels as good as new. Highly recommend!


    • Familiarity: I've put it through the wringer

    I would consider myself to be a slight nerd and do my share of research on any product where I spend over $100.
    I read a ton of good reviews, saw they were ridden in the pro peloton and the price was right, so I bought a set. They are a great wheel set and were actually built up in the US.

    Solid wheel

    • Familiarity: I've used it several times

    These are my first carbon wheels and I was nervous to make the jump mostly due to fears of worse brake power. Those fears are squashed for me. These stop as good if not better than my aluminum brake track wheels. I didn’t have any issues with brake squeal and I’m a terrible mechanic.
    The wheels feel very smooth when rolling. Feel stiff when climbing. And feel strong to support me at 185lbs
    The stickers were not glasses in so I removed and now the wheel/bike combo is black AF.
    Overall, I’m happy I made the jump

    Great carbon wheelset!

    • Familiarity: I've put it through the wringer

    I picked these M5's up 14 months ago and have put over 2800 miles without any issues. I have ridden on some very rough roads and they stay stiff and true. A huge fan of Mercury wheels.

    Great Quality And Value!

    • Familiarity: I've put it through the wringer

    I decided to upgrade my stock wheel on my Specialized with these and couldn't be more pleased. They're light, stiff and fast too! They roll extremely well and the hubs are great. Great quality wheelset plus they're handmade in the USA.

    These Mercury M5's are a steal!

    • Familiarity: I've put it through the wringer

    I have 3k miles on these wheels with ZERO issue, amazing on the flats and climbs as fast as anyone else. Quick wheels at an unbeatable price.

    Fantastic Wheelset!

    • Familiarity: I've put it through the wringer

    I absolutely love my Mercury's, I've put over 4,000 miles trouble free miles on them in the past year. Ride great in the flats, climb well, have excellent cornering and do great in the wind. They are a fantastic all around wheel set, I love them so much I order a pair for my wife's bike.

    Expectations surpassed!

    • Familiarity: I've used it several times

    Great wheels at a bargain price. I would compare this wheel set to be equal to my previous roval cl40’™s and Zipp 404’™s. The Mercury’s setup perfect with conti gp4000 25’™s. I setup brake pads as mercury suggests and braking has been quiet and surprisingly powerful. The wheelset build quality is extremely nice. I wanted a quality aero set for riding my local routes with short punchy climbs and rolling hills, and these are plenty light to roll up and over my favorite routes.

    Expectations surpassed!

    Fast Wheels!

    • Familiarity: I've put it through the wringer

    I own a couple of sets of carbons wheels from other brands and wanted something new for my Trek. So I pulled the trigger on these Mercury M5's and couldn't be happier.

    Great wheelset!

    • Familiarity: I've put it through the wringer

    Best carbon wheelset I've ever had. I've had them for over one year and have never had issues. They roll super fast and are very lightweight, extremely great wheelset for the price. I recommended these wheels to anyone who wants the go fast. All of my race times improved dramatically. Also they're great looking.

    bang for buck

    • Familiarity: I've put it through the wringer

    I’ve raced these in pro 1/2 events without any issues. I’ve been on Zipp, Vision, HED wheels. These are light enough and plenty stiff enough to handle constant accelerating in crits.

    Great Performance wheelset

    • Familiarity: I've put it through the wringer

    I purchased a set of the M5 wheels for my wife and myself. We ride in CA where the roads are not in the best shape and I love the feel of them. The wheels look great, are light weight, and made with excellent quality. These wheels come with excellent hubs with good engagement. Buy yourself a set, you will not regret it.


    • Familiarity: I've put it through the wringer

    I recently upgraded my BH Quartz to these M5's. These were my first set of carbon wheels. Relatively light, stiff and fast too! They roll extremely well and the hubs are great. No issues at all. Love the way they look, plus at great value.

    Nice set of wheels

    • Familiarity: I've put it through the wringer

    I bought a pair of these wheels from CC for a good reliable training wheelset and for racing in Merckx Class TT's. I have already done one of these TT's (10.0 miles at an average speed of 25.7 mph) on the M5's and these wheels performed wonderfully and compare very favorable aerodynamically speaking to my Hed 6's that I used in many of these same TT's. The price was right so I gave them a shot after reading through plenty of reviews. As the owner of four pairs of Zipps, Zipp discs, Reynolds, Mavic's, and HED's I can say these are a very fine set of wheels and I haven't had any issues with them. They are pretty stiff and I don't get the dreaded front brake rub when I get my 180 lb body out of the saddle to sprint up to speed. This wasn't the case with my Reynolds as they rubbed at the slightest hint of a sprint. I might have to revise my thinking and say that I would even race criteriums as well with these wheels - they are that good. As for road races, I would choose a lighter wheel for that purpose but these wheels could be used for RR's too - especially if the RR doesn't have any really long climbs in it. The only issue I can say is that I'm not fond of the valve extensions (you know, the ones that fit over the existing inner tube presta valve and leak horribly when fitting the floor pump's jack to it). So I dumped them for the far better Zipp extensions with the presta valve installed at the end of the valve extender. Presto, and no leaks. This is but a minor inconvenience but I thought it should be stated anyways.

    Big Bang for the Buck

    • Familiarity: I've put it through the wringer

    Great wheels! I have close to 2700 miles on them with no complaints at all. Mercury has provided the perfect mix of a solid ride with quick acceleration, excellent braking and tremendous durability. Great price and highly recommend them.

    Hey bro I'm seriously considering buying these wheels very soon. It seems like most of the reviews cover the same stuff but the one subject I really haven't seen mentioned at all has been the hubs. How does the rear hub sound while freewheeling?

    Great Wheelset - Fantastic Value

    • Familiarity: I've put it through the wringer

    I purchased my Mercury wheels earlier this year. Very pleased and impressed with these wheels. They are great for hard acceleration/sprinting on flats or uphills. Plus they are very stable in corners. Very low maintenance and arrived true. Can't be any happier!

    Excellent wheelset!

    • Familiarity: I've put it through the wringer

    The M5s are a excellent set of wheels. They handle very well, aren't twitchey in crosswinds, and I really like the depth for flat races or crits. The pads grip well with no braking issues. Great price and highly recommend them.

    Fantastic Wheelset at Super Price

    • Familiarity: I've put it through the wringer

    I picked these up 4 months ago and have used them as my everyday wheels for both training and racing. I've put over 1800 miles with no issues at all. Relatively light, stiff and fast too! The wheels are deep, but handle crosswinds and descents well. Thanks Mercury!

    Just OK

    • Familiarity: I've put it through the wringer

    The brake track isn't very good. The pads constantly glazes over and squeal. I would not recommend or buy these again.

    Unanswered Question

    are these rims tubeless or tubeless ready??? they are listed on a google search in the tubeless category, but I doubt it, based on specs. thanx

    What color is the decal on this wheel set? The last stock picture shows gray/black Mercury decal.



    I am seriously considering purchasing these but I am not sure what the "black" set looks like. The product photos show the wheel decal color in white and a dark grey. Are there any other photos to show the exact coloring of the black wheel set in stock, or is black the dark grey pictured?? Thanks!

    What is the actual outer brake track width? The specs say "[external] 24mm" but the description states "The M5 is a solid 23.5mm wide", further the Mercury website says "The M5 is a solid 24mm wide". Also what is the inner diamteer?

    I actually posted this question on their website. Someone named "Karen" from Mercury replied almost right away with this:

    "If you're looking at the current year model, the rim shape is toroidal shape. The current year (2017-current) width is 24 at brake track; 25.5 at the sidewall."

    Hi, just to clarify, the included rim strip/tape is for running the wheels with tubes, not tubeless, correct? Thanks.

    I've got a set of M3s on my 2011 Cervelo R3 Team with 700 x 25 clincher tires (love em) but a 28 would not work because the forks are narrow. Will the M5s fit on my bike with 700 x 25 tires?

    From what I understand, many of the less recent Cervelos would not fit a 25mm tires, especially with the wider profile rim. Unfortunately you may be stuck running 23mm tires with that combination that you have. If you are looking for a smoother ride you may want to look at some tires that have a softer casing, like a Vittoria tire with a 320 TPI casing, that will allow the tire to compress more easily.

    Let me know if you have any other questions.

    How do I use the dark/gray decals? Do I peel off the white ones or do I place the gray on top of the white decals?

    How is braking in the wet, and how does it compare to Mavic Exalith's and HED Jet blacks in terms of stopping power.

    Hey Hans - The Exalith and HED Jet Black have these beat in terms of braking, but they are solid wheels nevertheless. Could be a great crit wheel or trainer set when riding flats. Let me know if you have any other questions.

    I just bought two sets of these last night. One for me and one for my wife. I was wondering how to tell if I got the newer style Mercury brake pads and how I could get them.

    Yeah. So the old brake pads look a little dull almost porous where the new ones are a more dense shiny look. Both work but the new ones are much better. Go to mercury wheels web page. You can get them there. Or better yet call their customer service and talk to Karen. She is awesome and will steer you in the right direction. I've had the wheels for a full season. And honestly can't say enough good things about them! Mercury Rocks!!