ENVE Composites M6 Rear Disc Brake Rim
The ENVE M6 is the trail rim in ENVE's M-Series, molded in Ogden, Utah, and it is the one we build most: wide enough for modern 2.4 to 2.6in trail tires, light enough to climb on, and tuned front and rear for the different jobs the two wheels do. The front M6 is 29mm wide inside for grip and the rear is 29mm for a tighter, stiffer tire profile under power. Both have ENVE's patented molded spoke holes, shallow 20mm-class profile and wide, blunt hookless bead. This page covers the ENVE Composites M6 Rear Disc Brake Rim.
The M6 comes from us only as a finished wheel: pick the hub, spokes and nipples, and we lace, tension and true it by hand in Georgia before it ships.
Design and construction
The M-Series rims share three ideas. The spoke holes are molded, not drilled, so the carbon fibers run unbroken around each hole and the rim keeps its strength where a drilled rim is weakest. The profile is shallow, about 20mm, which is where the compliance comes from; a deep carbon rim is stiff in every direction, and the designers decided a mountain rim should give a little vertically. And the bead wall is wide and blunt on the newest generation, which is how the company cut pinch flats and rim damage compared with its earlier rims.
How it rides
An M6 wheelset is what a modern carbon trail wheel should feel like: precise without being harsh, light without being fragile. The wide front lets you run a 2.5in tire soft for grip; the narrower rear keeps a 2.4in tire supported when you stand on the pedals. The shallow profile gives enough vertically that a long rocky descent does not beat you up, which is the thing riders coming off older carbon rims notice first.
The M6 is a trail and all-mountain rim. For cross-country racing the M5 is lighter; for enduro and park the M8 and M9 are tougher.
Specifications
| Wheel size | 29in, 27.5in |
|---|---|
| ERD | 608 (29in), 570 (27.5in) |
| Inner width | 29 mm |
| Depth | 21 mm |
| Drillings | 28h |
| Weight | 445g (700c/29in), 438g (650b/27.5in) |
| Material | Carbon Fiber |
| Tire type | clincher tubeless compatible |
| Brake | Disc |
| Nipples | External |
| Finishes | black |
About this listing
Version notes. 29in, 27.5in, 28h, about 445g, 29mm inside, 21mm deep, disc. The other sizes and brake versions of the M6 have their own listings; this page is for this one.
The disc version of the M6 has no brake track, so the sidewall is a plain extrusion that saves a little weight and never wears; it is the one to choose for any disc-brake frame. The rim-brake version, listed separately, has a machined sidewall.
Sizes, fit and compatibility
The ENVE Composites M6 Rear Disc Brake Rim comes in the drillings listed on this page. It is a disc-brake rim. We build the M6 on the brand's own hubs, Industry Nine Hydra and 1/1, DT Swiss 350 and 240, Chris King MTB, Hope Pro 5 and Onyx Vesper hubs, usually with Sapim Race, D-Light or CX-Sprint spokes or DT Competition, and brass nipples.
Tire range on the M6 is 2.3 to 2.6in, tubeless-ready tires only on the hookless bead. Pick your bike type and weight in the configurator and it recommends a spoke count and lacing pattern.
Build it into a wheel
This rim is live in our Custom Wheel Program for mountain bike, MTB single-speed and fat bike builds. Start a build with the ENVE Composites M6 Rear Disc Brake Rim and the configurator opens with this exact rim pinned at the top of the ENVE Composites list — you choose the rest of the parts and it validates every combination as you go.
Spoke head is decided by the hub, not the rim: this rim builds equally well with J-bend or straight-pull spokes, and the configurator only offers the spokes that match the hub you pick.
Testing, standards and warranty at ENVE Composites
ENVE makes and tests its rims in Ogden, Utah. For mountain rims it runs three drop tests, each dropping a calibrated weight onto a wheel with an inflated tire. Test 1 (since 2007) strikes both rim walls and is raised until first visible damage; ENVE requires 10 in for XC, 12 in for trail and 14 in for gravity rims. Test 2 (since 2014) strikes one rim wall to mimic pinch-flat hits, requiring 5 in (XC), 6 in (trail), 8 in (gravity) and 10 in (DH race). Test 3 (since 2021) rotates the wheel between hits so every spoke hole is struck, 100-plus impacts per rim. ENVE states the 2024 M6 improved 47% over the M630 and the M8 21% over the M730.
For hookless road rims ENVE states it has run over 1,000 tire tests in eight years. ISO 4210 requires a tire to hold 110% of its maximum pressure for five minutes (5 bar/72.5 psi for a 28 mm tire); ENVE approves a 28 mm tire only if it holds 120 psi, 165% of the ETRTO/ISO maximum.
ENVE Composites's videos
From ENVE Composites
Certifications
- UCI approved wheels — UCI list version 2024.10.02: SES 2.3 TUBELESS (24.01.2022), SES 3.4 TUBELESS and SES 4.5 TUBELESS and AG25-700C (31.01.2022), SES 6.7 TUBELESS (03.05.2022), 45 and 65 (17.06.2020), G27-700C (19.03.2021), G23-700C (05.07.2019), SES 3.4 ALL ROAD CLINCHER (08.03.2019), SES 4.5 AR and SES 5.6 variants (26.07.2018), SES 3.4 variants (21.07.2017), SES 7.8 variants (14.11.2016) (source)
- ISO 4210 tire retention (referenced) — ENVE states ISO 4210 requires holding 110% of max tire pressure for five minutes and that its own hookless approval requires 120 psi / 165% of the ETRTO/ISO 5 bar maximum for a 28 mm tire (in-house standard, no certificate) (source)
- Limited Lifetime Warranty — Rims: lifetime for original owner; hub internals and bearings 1 year; second-hand owner 5 years from date of manufacture; crash replacement 0-3 years no charge, 3+ years 30% off MSRP (source)
Sources on ENVE Composites's site:
- M Series Impact Testing 2024 - ENVE
- Why Make more Compliant Rims? - ENVE
- Hookless Rim Technology 101 - ENVE
- ENVE | WARRANTY
- Complete Terms and Conditions - ENVE Limited Lifetime Warranty
The figures, certificates and media above are ENVE Composites's own. ProWheelBuilder does not run these tests; our part is the wheel we build on the rim.
Building it at ProWheelBuilder
ENVE makes the M6; ProWheelBuilder is an independent wheel builder in Georgia, not the manufacturer. We measure the rim before we cut a spoke, bring the wheel up in three or four rounds with a gauge, stress-relieve it between rounds and true it last, then tape it and fit a valve if you want it tubeless.
Only compatible hubs and spokes appear in the configurator, impossible combinations are struck through rather than hidden, and the price is live.
Warranty
ENVE Composites's warranty. ENVE gives the original owner a five-year limited warranty against defects in materials and workmanship, alongside its Lifetime Incident Protection program, which covers rims, forks, bars, stems, seatposts and hubs damaged in riding incidents.
ProWheelBuilder. Any wheel we build on this part carries ProWheelBuilder's one-year warranty in addition to the manufacturer's. Broken spokes are replaced for a year whatever the cause, and all wheel-side labor is included - truing, re-tensioning, rebuilding. Where the maker covers a failed rim or hub we handle that claim for you; where they decline, an eligible replacement comes at 25% off current retail. The customer covers shipping in both directions. Components supplied by the customer are not covered.
Full terms are on our Policies & Warranty page.
M6 Rear Disc Brake Rim questions
What tire width suits this rim?
At 29mm inside this is a trail width, sized around 2.1 to 2.4in tires. That is wide enough to stop a modern trail casing rolling under you in a corner without pushing the tread so flat that it wears down the middle.
Which spokes and nipples suit the M6?
For most riders a double-butted spoke such as Sapim Race or DT Competition with brass nipples; lighter riders can go to Sapim Laser or CX-Ray. The configurator recommends a gauge and count for the M6 from your bike type and weight.
Why are there front and rear versions?
ENVE tunes the layup and sometimes the width to the job each wheel does: the front for grip and compliance, the rear for stiffness and impact strength.
Is it tubeless-ready?
Yes. ENVE Composites lists the M6 Rear Disc Brake Rim as clincher tubeless compatible; we tape and fit a valve when you choose the tubeless option.
Which spoke count should I choose?
It depends on your weight, terrain and the hub, not the rim alone. The configurator recommends a count from your bike type and rider weight, within the drillings this rim is made in.
How long will the wheel take?
Build time comes down to parts availability rather than bench time. The estimated ship date is shown in the configurator before you check out.
Not sure? Text or leave a voicemail on 470-253-0929 or email info@prowheelbuilder.com — you will be talking to the people who build the wheels.
