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
  • Includes end caps for 12mm and 15mm front thru-axles
  • Reviews
  • Q & A
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

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?

    Great price, tubeless and spoke issues

    • Familiarity: I've put it through the wringer

    UPDATE: After riding these for over a year now, I can say I'm disappointed and would not buy again. Although they hold air when setup tubeless, there is a constant leaking of sealant at various spots around the rim. They just don't fully seal - even with TL tires. I've also broken two spokes on the rear wheel. Would not recommend.

    First off, the sale price on these is unbeatable. For under $400, I can't imagine finding a better set of wheels. Roll nicely, well-built, look great, quality hubs. My only issue is with the tubeless setup. They were challenging to setup tubeless in the first place, and have continued to be disappointing as far as holding air and being burp-free. I have sealant stain on my sidewalls after every ride, regardless of PSI.

    That being said, I'd still buy these wheels for the sale price and just deal with the tubeless challenges.

    FWIW, I'm running Panaracer GravelKing SK 35s. On my previous Stan's rims I had no burping or leaking.

    Damaged Rim

    • Familiarity: I returned this product before using it

    I ordered these rims off of Backcountry. When we received them, there were 2 spokes that were bent and a scratch on the edge of the front rim. I contacted Mercury and the asked me to send pictures. About an hour later, I was told that a front replacement rim would be sent out in addition to a return label for the damaged rim. I received my new rim 3 days later with a complimentary shirt for my troubles. Which was really no trouble at all! Exceptional customer service. Very quick with the response and absolutely the easiest return I have ever dealt with. I can see me purchasing more rims from Mercury in the future. As a union employee with the United Auto Workers 249, it's great to know I can purchase and American made product!

    great wheelset

    • Familiarity: I've used it several times

    ran this with 15/100 front 12/142 rear TA with schwable rocket ron 33s and its perfect smooth light wheelset way better than the stocks i had. plus cant beat the price and exceptional customer service from CC

    Can I set these up with the SRAM XD for their 1x system?

    hey Jason, this hub won't work with XD.


    These can be run with an XD driver for a 1x system. If you have any questions about this wheelset or 1x setups please feel free to let me know.


    all our disc hubs can run SRAM XD drivers.

    Approximate weight?

    1680 grams Eric

    Great wheel at an even better price

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

    First, you can't beat the price point for a wheel as versatile as these. I put these on a CX bike with 15mm / 12mm TA front/back. I ignored the description around tire size and put some Schwalbe G1's in 35mm on. Took the bike for a ~40mile gravel / road ride and they worked out perfect. They worked every bit as well as some custom wheels I own which I paid a lot more for, and from what I can tell they are very close in weight also. Add to that the great service at Comp Cyclist, where they called to let me know the order was shipping, and a follow up call to see if I had any questions. I agree with the reviewers comment re: rim tape, however that was a quick fix. Thumbs up so far!

    Great wheel at an even better price

    Do these come taped up for tubeless, or are they just rim strips?

    Rim Strips.

    Tire sizing for these wheels, etc.

    • Familiarity: I've put it through the wringer

    First off I'm going to gripe about the completely dumb write up for this wheelset so I apologize. Then I'll comment on these wheels.

    The write up states, "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 also: "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."
    Hilarious. If you actually DO consult the ETRTO chart as they suggest (which they clearly haven't done) you would see that this width of wheelset is just barely useable with tires as small as 25mm. Actually, the 33mm cross tires that they "wouldn't reccomend" fall right into the middle of the ETRTO recommendations for tire size. In other words 33mm tires are a great fit for this size of wheelset. This write up is misleading for reasons I can't understand.
    Now the wheels. I have had great luck with these wheels and might actually buy another set for a second cross/gravel bike I'm building. The set I currently have has probably seen less than 1000 miles but much has been on rough, washboard gravel logging roads and singletrack. They are still straight and true. Also, the conditions I've ridden in have been ridiculously wet and muddy at times for hours and everything is still tip top. Seems like a good product for the price IMO.

    Agreed. I measured mine with a micrometer at 24.4mm outside braketrack, 19mm inside. The description says they are 18mm internal, and Mercury's website says 20mm. 19mm is more than enough internal room for 25-32mm road tires and a 33mm CX tire.