Logically, the ultimate wheelset.
Follow our logic: If most mountain bikes being sold today are of the "new" do-it-all 27.5-inch diameter size, and if most riders want a wheel somewhere in between XC-light and AM-tough, and if ENVE makes the best mountain bike hoops on the market, and if Chris King makes the best hubs on the market, then our conclusion must be that the ENVE M60/Forty 27.5-inch Chris King Wheelset must be the ultimate mountain bike wheelset. So is that what we're saying? Well, yeah.
When ENVE set about designing the M60/Forty rim, the goal was to build a hoop that occupied the space between the previous "XC" and "AM" model rims, with the understanding that such a midpoint represented the ultimate rim for the way that most people ride off-road. Unsurprisingly, the team in Ogden delivered in spades. The 27.5in M60/Forty rim now weighs 374g, making it 40g lighter than the previous AM rim, and nearly the same weight as the XC. Part of this weight savings has been accomplished by trading in traditional bead hooks for a redesigned beadless hook bead, which is both lighter and more impact resistant. The width is a generous 23mm internally, which provides a round tire profile, for greater cornering stability, and more rubber on the ground at any given time. By relieving material from the rim, ENVE has taken the M60/Forty’s tuned ride feel to previously unseen levels. Anyone who’s familiar with ENVE knows the fanatical lengths that its engineers go to in order to achieve a perfect ride feel. Accordingly, the M60/Forty has been tuned to provide a degree of vertical compliance, thereby reducing rider fatigue, without sacrificing the fantastic lateral rigidity that endows ENVE with the “on rails” feeling for which they’re prized.
Up next are those excellent hubs. The name Chris King in cycling componentry is synonymous with absolute quality, longevity, and aesthetic appeal to boot. All parts, including seals and bearings, are made in-house in Portland, Ore., to industry-beating standards, and are known for lasting years upon years without service. In fact, the company's quality control standards are so stringent that it's been known to melt down entire batches of hub shells if the color anodizing is off by even the slightest shade of hue. In the rear hub, the 72 (yes, seventy two) points of engagement give the freehub body the fastest response of any hub on the market, and a distinctive sound to go along with it. That same rear hub is designed to withstand a consistent 800 ft/lbs of torque, quadruple what most hubs are even tested to, and downright ridiculous when you consider that an Olympic-level track sprinter is capable, at peak power, for only a few seconds, of putting out around 150 ft/lbs. Like we said, when it comes to hubs, Chris King makes them second to none.
The ENVE M60/Forty 27.5in Chris King Wheelset is available with either a SRAM 1x XD freehub body or a standard freehub body, and in the color Black. The Chris King ISO hubs are compatible with 6-bolt rotors only.
- M60/Forty rim weighs roughly 374g
- Redesigned beadless hook bead
- Rim width is a generous 23mm internally
- Chris King hubs feature 72 points of engagement
- Rear hub designed to withstand a consistent 800ft/lbs of torque
View more 27.5" Mountain Bike Wheels - Tubeless
Reviews & Community
ENVE or bust.
- Familiarity: I've put it through the wringer
Dampening on rocky and uneven terrain becomes easy to manage with these rims! I can never go back to aluminum after experiencing the luxury of carbon-fiber. Not to mention I saved pounds off of by overall bike weight. I race enduro's all around the west coast, and these are the most reliable rims I've ever owned, worth the money.
Monica & Her M60s atop Louis Peak
The long, steep climb of Southern Skyline Trail is no match for Monica and her M60s, nor for M@ and his M60 HVs!
THE BEST WHEELSET EVER
- Familiarity: I've put it through the wringer
**I am republishing my review I wrote several months ago for the M60Forty wheelset that I original posted for the DT Swiss hub-equiped wheels. The wheels I own are equipped with Chris KING hubs but at the time I ordered, KING hubs were a custom build and not stocked by Comp Cyclist.**
I now have several 100 more miles on the M60Forty wheels than I had when I originally reviewed them and I can say they continue to impress me every time I ride them. I routinely go to my hardtail equipped with Stan's Crest and occasionally ride a bike with Stan's Arch rims. While the Stan's rims are solid wheels and I like them, I LOVE the ENVE wheels!! The Stan's are like driving a nice Honda and then, The ENVEs are like THE BATMOBILE!! The ENVE wheels are so fast, so strong and just inspire confidence. I can rail anything without any noticeable flex or give. Perfect.
Why do I insist on KING hubs? They are about 100 grams (of rolling weight) heavier after all. If you have ever ridden KING hubs, you know it is worth a 100 gram weight penalty for the fastest engaging, most durable hubs in the industry. Keep in mind, they do require adjusting from time to time.
My preface: this review is my opinion and not objective fact.
I bought my first mountain bike in 1992...and I have owned several since. This is my first 650b/27.5" wheeled bike but that doesn't make me hesitate when I declare these wheels to be the BEST ever made! I have ridden some fairly high-end mt wheels (Stan's Arch and Crest, Shimano XT, just about everything offered from Mavic) and maybe it is that these are my first carbon rims and/or maybe it is the change in wheel size from 29er to 650b but I suspect it is much more than that...these are ENVE carbon rims. I never knew wheels could ride so nice! Obviously, rolling mass is an area where an upgrade will make a larger impact but the difference between the M60Forty wheels and anything else I have ridden is HUGE! These wheels are SO SO stiff and inspire confidence I have never felt before in over 20 years of riding the mountain. They were easily set up tubeless and roll up to and maintain speed nicely via the Chris King hubs (I had Mike Nelson, ext 4076, special order these. As with all Comp Cyclist reps, Mike is AWESOME!!). I am sure there are plenty of other lightweight options but these are NO compromise wheels! You plunk down the $$ and ENVE WILL deliver the goods!!
If I had to complain about anything, the decals are dinged and scratched easily (signs you are riding right, my friend!) and they are très $$$$. BUT if you can afford them, you can't afford not to ride them! You will not be disappointed!
My quick plug for 650b/27.5": I went from 26" to 29" and now, 27.5" and each have there +s and -s. I agree with many that state 650b is the best of both worlds. Still, I think/hope this size will grow and settle in as the trail/All Moutain standard...and I am sure that my incredible experiences on these wheels (and my Santa Cruz Solo/5010) have a lot to do with the 650b standard. Still, I keep more than one 29er in my fleet and feel it is the best size for racing. For what it is worth...