Super light, rigid and fast. Over 1800 miles and everything is good. Very well built.

Hi,



I have these on an SB-130 - and I ride about 1-2x a week in central Virginia.



Mine failed, seemingly for no reason, while riding on smooth singletrack. I heard the 'shotgun' sound and was really confused. I run cushcore about about 29 PSI (29x2.4) on my rear. It appears that the rim just simply failed randomly. This is after having to re-spoke the wheel after it started to pop spokes every week in under 4 months of use. I had high hopes and had enjoyed them thus far, but I feel like I should be able to get a year out of them. Now the've cost me a rebuild and then failed completely.



Customer service responded, but then didn't provide an answer on whether this would be covered. So I guess after a couple weeks the answer is a no.

Hi,



I have these on an SB-130 - and I ride about 1-2x a week in central Virginia.



Mine failed, seemingly for no reason, while riding on smooth singletrack. I heard the 'shotgun' sound and was really confused. I run cushcore about about 29 PSI (29x2.4) on my rear. It appears that the rim just simply failed randomly. This is after having to re-spoke the wheel after it started to pop spokes every week in under 4 months of use. I had high hopes and had enjoyed them thus far, but I feel like I should be able to get a year out of them. Now the've cost me a rebuild and then failed completely.



Customer service responded, but then didn't provide an answer on whether this would be covered. So I guess after a couple weeks the answer is a no.

Going on 13 months so far. I've had these wheels on 2 of my mountain bikes and have been really impressed with the performance and how well they hold up over time. They're very lightweight and stiff and hold a line really well through rocky technical single track terrain. Love them!

I bought my Mercury X1 Carbon Enduro Wheelset late last summer after reading all the five star reviews and reading Mercury's "warranty dude"/ FreddyMercury's post below (scroll to Andrew's review thread on 3 Aug 2020) that said the crash replacement was around $125. Even sweeter, the wheels were on sale when I purchased them. I have been riding them 2 days a week for about 10 months until last week when I caught a rock with my rear wheel. They have held true and been reliable until now in moderate terrain. Damage was debatably my fault as I didn't check my tire pressure before the ride and the tire may have been a little low. I contacted Mercury to arrange a crash replacement and heard back from Don. Even with the supply chain a mess from COVID, they were able to work me a crash replacement. It wasn't the $125 that I had initially expected but Don went out of his way to support a customer and they got me a replacement at a price that was better than fair after some coordination.

It should have been a red flag to me when saw more reviews on this wheelset than any other on here or Backcountry. At that time though I didn’t know there was an affiliation.
I purchased these wheels for my girlfriend’s enduro bike. She is beginner to intermediate, and since she is 135lbs geared I tried to find a carbon wheelset that would still be compliant. She rode them for a little under a year, until the rear just blew out on a single track one day. She does not jump or send drops.
I emailed Mercury, and they had me send pictures. Based off of the pictures they told me it would be a crash replacement, which is $500 plus shipping. The damage did not happen because of a crash, pure and simple. On top of this, their warranty support hasn’t followed up with me on getting the replacement going. I am very disappointed that a company won’t back their product. I have a set of e13 carbon wheels I have put through the wringer and never had an issue with.
I would steer clear of these wheels and go with a company that stands behind their products, which is most other mainstream companies.

I bought these X1 a couple of months ago to replace my stock wheelset on my Niner and I can definitely say it was well worth the money. The wheelset is stiff but with nice damping and light. I love the quick engagement of the new hub.

I’m 210lbs and not easy on my bikes I’ve had them on my bike for about a year now. Light weight, very durable, stay true, look great, easily mount up tubeless and hands down the best upgrade to my Yeti. Yes I recommend them and have to many friends I ride with.

I've had these wheels on 2 of my mountain bikes and have been really impressed with the performance and how well they hold up over time. Engagement is off the hook. They're lightweight and stiff and hold a line really well through rocky, rooty technical terrain. Highly recommend!

Great rims with great hubs! This is my second pair of Mercury carbon wheels. They’re stiff, strong, and very light. Perfect for my enduro machine. Love the super quick engagement. Nice job mercury.

Love the wheels. Good engagement, great traction and nice dampening with the FiberX.

After putting these wheels through the paces the last few months I have nothing but praise for these. After riding these wheels for over 1100 miles on rough singletrack, I have found that these wheels are stiff and wide with quick engagement. The hand build on them is fantastic. I found myself trusting these much more than my previous Enve carbon wheel set. Love these wheels and would highly recommend them.

These X1’s made a great upgrade to my SC Tall Boy. Instant improvement in climbing and the bike feels perfect now. I’m 210lbs and not the smoothest rider out there. So far so good after about 10 months of steady hard riding. They dropped a good bit of weight from my bike and it’s noticeable. Very well built wheelset and haven’t had to true them at all.

Very happy with my X1 carbon wheelset as an upgrade to my DT factory wheels. These are very light and extremely durable. Super quick rear hub engagement. Running Maxxis Crossmark 2.25 tires and they ride great Over a 3100 miles on them so far with no issues. Get yourself a set and you won't be disappointed.

I’m very happy with these, I’ve Mountain biked every other day for over a month, in all types of terrain, and in different weather conditions, the rims are excellent, they feel wonderful, and hold up well to hard riding. This is definitely the best upgrade I’ve made.

I bought these as an upgrade to my 2019 Stumpjumper ST. I upgraded the stock, alloy Specialized wheels, and tires (changed to Maxxis Forecaster/Ikon). Together, the upgraded wheels and tires shaved 5.2 lbs off the total weight of the bike. My bike went from a burly 35.2 lbs to a respectable 30.0 lbs, including pedals. Over the past 3 weeks I have ridden the new wheelset over 100 miles on dry, rocky trails in No. Utah and Idaho. There is a noticeable difference in my climbing speed. Downhill they are solid. The hubs have opened my eyes to the benefits of high-engagement. Ratcheting over technical sections is easy, and the near-instant power transfer during pedaling is really nice. I would highly recommend these wheels to anyone.

EDIT: The day after posting my original review I broke my back rim on a local trail. The Mercury Wheels staff reached out to me and completely took care of the problem. In my case the rim couldn't be repaired and was quickly replaced. I was very impressed with their service. Thanks!

The X1’s are light and ride surprisingly well. They're rigid but still have a flex when you want it. Tubeless setup was super easy. Also, love the quick engagement. Great purchase.

The X1 wheels are light and stiff but with nice damping effect. The engagement is right on. I ride very tech and find that the wheel track spot on. I have been riding these wheels for one year and they are still true. No issues at all. Highly recommend.