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  • Mercury Wheels M1 Disc Brake Wheelset - Clincher
  • Mercury Wheels M1 Disc Brake Wheelset - Clincher Rear
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Mercury WheelsM1 Disc Brake Wheelset - Clincher
Sale 50% Off$374.95 $749.00

Item # MCW000L

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  • White/6-Bolt, 12/15x100/12x142mm,Shimano/SRAM ($374.95)
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Item # MCW000L

Solid training.

As much as you love your 'cross wheels, knobby tires just aren't as fun on pavement when you're trying to throw down for county sign sprints in a pack of skinny tires. What your 'cross bike needs is a solid set of affordable aluminum hoops like the Mercury Wheels M1 Disc Brake Clincher Wheelset for a dose of roadie speed to knock out summer base miles and pastry-fueled group rides. Made from lightweight yet durable alloy, these wheels are the ideal training companion to give your 'cross bike new life on the road and let your race wheels take a break from the elements.

The M1's 18mm internal rim width belies a road-focused intention to provide a solid platform for today's trend of 25mm tires, and tubeless compatibility empowers those of us looking to ditch the tubes and reap the benefits of lower tire pressure and a smoother ride. While we wouldn't necessarily recommend mounting 33mm 'cross tires on rims this narrow, the tubeless compatibility and a quick consultation of the ETRTO charts indicate that they'll also serve as pit wheels in a pinch when your usual spares are at the shop for maintenance.

  • A sturdy aluminum disc brake road wheel
  • Aluminum rim construction balances strength, weight, and cost
  • Shallow rim depth remains stable in the wind
  • Ideal internal rim width for today's wider road tire trends
  • Laser etched logos won't peel away
  • Compatible with 6-bolt disc rotors

California Proposition 65


This product can expose you to chemicals including Lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to

Tech SpecsWeight
Tech Specs
Rim Material
Wheel Size
Tire Type
tubeless, clincher
Rim Depth
Rim Width
[internal] 18mm, [external] 24mm
Brake Compatibility
6-bolt disc
Mercury Race
Front Axle
12 x 100mm thru-axle
Rear Axle
12 x 142mm thru-axle
Sapim Race
Spoke Nipple
Black Brass
Spoke Count
Recommended Use
Manufacturer Warranty
2 years

Actual Weight

Actual weights are measured in-house by the Competitive Cyclist team.

Have questions? Chat with a Gearhead



White/6-Bolt, 12/15x100/12x142mm,Shimano/SRAM

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[front] 760g, [rear] 890g, [set] 1650g

Reviews & Community


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Great Deal!

  • Familiarity: I've put it through the wringer

Going on two years and no problems. Easy tubeless setup. Smooth rolling hubs and stiff rims. Running Michelin 28c tires and they feel great.

Crazy good wheels!

  • Familiarity: I've put it through the wringer

I needed a new set of alloy wheels to replace my OE wheels on my Giant. First off these wheels are a tough as nails. I’ve been rough on these and they’re still completely true as the day I received them. Now over 2000 miles on them with no complaints. Highly recommend if you need a sturdy all around alloy wheelset.

Are these 11 speed cassette compatible? I can't find the info anywhere!

This should tell you everything you need to know.

Solid wheelset!

  • Familiarity: I've put it through the wringer

Picked these up as replacements for my stock wheels. After 3400 miles no issues at all. Very sturdy wheels. Great job mercury.

Great wheelset!

  • Familiarity: I've put it through the wringer

I use these M1 on cyclocross bike. Over 3500 miles and no issues at all. Have been running 40c tires on them and they've been great. No problem with tubeless setup. Highly recommend.

Nothing but drama

  • Familiarity: I've put it through the wringer

I cannot recommend these rims. They are a lot like Seattle, when they work they are great, it is just the amount of time dealing with rim tape alternatives, multiple flats, and LBS trips, make them un-reliable. There is clearly something wrong with the engineering of the spoke holes relative to the bead seat that caused the pressurized tire to move the tape. My advise is if you don't want to worry about flats, don't buy these rims.

Great Wheelset At An Even Better Price

  • Familiarity: I've put it through the wringer

Great CX wheelsets. Very strudy and well built with even tension; 11 months of hard riding and everything is straight and true. Love the way they look with the subtle laser etched logos.


  • Familiarity: I've put it through the wringer

Great upgrade from my mavic stock wheels Two seasons so far with no issues. Have been running conti 28mm tires which feel great. Two thumbs up so far.

Unanswered Question

Mercury website has these at 20mm internal width while backcountry lists 18mm. Which is it? Thanks!

Pretty Pretty Good

  • Familiarity: I've put it through the wringer

They may not be the lightest wheels on the market but they sure do roll fast. I've been using them on a CX commuter bike and they've been solid. They fit 40c tires pretty well, although setting them up tubeless took a little extra work.
The hub bearings have held up great to very poor conditions and have stayed true. Would definitely recommend

I’m having issues setting these up tubeless, what kind of tape did you use?

Look no further...

    Really wish I would have seen these earlier! I have a set of their 55mm clincher rim brakes wheels on my Super Six. Love them! Braking is awesome with the Mercury pads, but they do wear quickly! An understandable trade off as the pads are reasonably priced. These are a much better option than CN carbon wheels...


    • Familiarity: I've put it through the wringer

    I upgraded my Ridley X trail to these from the stock wheels and I couldn't be happier. Very stiff and well made wheelset. I have been running Schwalbe 35mm on them and they feel great. So far, so good.

    Spacing might be a bit odd

    • Familiarity: I've used it once or twice and have initial impressions

    i bought these as road wheels for my 2018 Giant TCX w front and rear 12mm thru axles. When I swap out the stock wheels for either my Stan's Iron Cross or Grail, all wheel sets drop right in and I think I barely had to tweak the rotors once and I don't have to adjust the shifting between the rear wheels.

    But for the Mercury, the 12mm front TA wouldn't go through. Well that's weird. Turns out the 12mm hub adapters for the Giant stock wheels and Stan's have an OD of 19mm, but the Mercury 12mm adapters have an OD of 21mm (measured w digital caliper). That 2mm is enough so when the hub seats in the fork, the axle hole is off center with the holes in the fork and the TA won't go in.

    On the back, when I first put in the wheel, right off the bat it's clear the disc brake rotor will need a spacer, and the shifting is off. Neither of these issues are unusual swapping different rear wheels or hubs, but there it is.

    I emailed Mercury and didn't get a reply which is disappointing.

    But as others have suggested, these wheels hit a sweet spot between price and quality, so I'm going to have the front adapters machined, space the rear rotor, and deal with the shifting.

    Hey Randy - You may want to reach out to They do have road disc specific end caps that would solve the issue and keep you from having to machine a fix. They're usually really responsive.

    Hey Randy, I haven't heard of a spacer for the rotor being needed before. I'd like to know if there is something more going on here. Would you mind sending your info over to We'll gladly get the front end caps that you need and figure out what could be causing the rear to not fit properly.

    I had sent info to info@mercurycycling, not support - my mistake. I did get a reply back from Mercury. They said one option is to adjust the brake caliper when changing wheels, otherwise after the machining and spacing it sounds as if I'm squared away.

    I have the same issue with a Ridley X-trail I bought here as well. I called Mercury and they are sending me a set of the 19mm end caps


    • Familiarity: I've put it through the wringer

    What a set of wheels. They arrive in a double wall box first of all which is much appreciated due to my last set of Easton's showed up all banged up with holes through the box. I know it wasn't Easton's fault, but..... The M1's have their logo laser etched onto the rim which I haven't seen before.
    Setting up for tubeless was a snap and only had to tape the spoke holes and valve hole to make them airtight due to the rim being laser welded. Honestly, I couldn't find the seam at all!
    The width is perfect for my 28mm tires that have seen approximately 1K miles.

    Love my M1 Disc wheels

    • Familiarity: I've put it through the wringer

    I bought these about 8 months ago and have put over 1700 miles on these with no issues. Have been running 40c tires on them and they've been great. I haven't had to true them at all. Super smooth wheelset.

    Love Awesome wheelset at a great price.

    • Familiarity: I've put it through the wringer

    I picked these up for my Gravel bike and couldn't be happier. I'm running Schwalbe G1's on them. They have stayed true, run strong all over the trails of CO. Also built in the USA. I would highly recommend these wheels.

    Great Cross/Gravel wheelset!

    • Familiarity: I've put it through the wringer

    Pick these up for my Gravel bike. They roll nicely, we'll made and look good. Highly recommend.

    Great Spare Wheelset

    • Familiarity: I've used it several times

    Picked these up (like everyone else) to use as a spare set for my CX bike. At the moment, I have my road slicks mounted to them - 700x25mm - so that I don't need to mess with my tubeless gravel tires each time I want to put in some pavement miles.

    For the price, you can't beat these wheels: purchased a cassette and two rotors to further make my life easier and the total cost still came out just south of my rear Zipp wheel. It'll be nice having a spare set when CX season starts, if my husband doesn't steal them for his bike.... that's the unforeseen downside of having a wheelset that can use both a QR and 12/15 Thru-Axle!

    As has been noted, the bzzz sound from the hubs isn't quite like a swarm of angry bees, but it's still noticeable. On my last ride, I found myself pleasantly surprised at how smooth they are. I like the fact that Mercury tries to manufacture as much of the wheels in the US as they can, too.

    If you're on the fence or upgrading a set of wheels for the first time, just do it!

    (I haven't tried messing with the tubeless setup on these wheels and probably won't bother, given the other reviewers' experiences.)

    Great wheels, great price!

    • Familiarity: I've put it through the wringer

    You really can't beat these for the price. I got these as a second set for my gravel bike to more easily switch from 40c knobbies to 28c road slicks.

    I'm running these wheels tubeless with 40c WTB nanos in the rear and 40c Maxis Ravager in the front somewhere around 35-40 psi and they are great! So great in fact that I'm getting a second pair for my 28c Conti gatorskins (not tubeless, unfortunately).

    The wheels are light, run true, and have a descent "buzz" sound from the freewheel (not Chris King great, but better than the stock Niner wheels that came on my RLT 9 steel 2-star build).

    The only issue with running these tubeless is you might need a better rim tape. I had my LBS set them up tubeless for me, and they had to replace one rim tape, but were able to use the other. Since I had it done for me, I can't personally speak to how easy or difficult they are to set up, but they've held air pressure VERY well since getting them set up.

    Unanswered Question

    I've ordered the rear QR conversion kit from Mercury that was provided in the answers below. Now, will this allow me to use the existing QR that is on my bike or am I going to need a QR with a different spec?