When a chance to evaluate the CADEX Max 40 wheelset arrived in my inbox, I couldn’t type my excited reply fast enough. These wheels are like capturing a unicorn. While they feature standard specs like hookless 22.4mm internal rims, they also offer ultra-rare integrated carbon spokes bonded directly to the aero-optimized carbon hub flanges. And, they just look fast. But, how did they perform? The Max 40s were light and incredibly stiff, and responsive. And, the ticket price is steeper than your local hill climb.
Unboxing the CADEX Max 40 Wheelset – US$4,500
First, let’s get these ready to get on the road. The wheels were securely packaged and arrived undamaged. The retail boxes each contained one wheel, in a wheel bag with a small accessory and literature pouch. Included with each wheel is a set of plastic tire levers that incorporate a valve core tool, and there is an XD driver provided with the rear wheel. For folks on Campagnolo drivetrains, the appropriate freehub is available from CADEX. Also, the wheels arrived with rim tape and tubeless valves installed.
There are a couple of ways to consider this. Clearly, CADEX went for the minimalist aesthetic with the packaging. Moreover, choosing to use single material packaging, recycling the boxes after unpacking is a cinch. Off to a good start.
The Goods
Wheels like this demand a discussion of specification and design first. The construction is rare, or as Germans might say: überselten—which is German for “unicorns are more likely to join you for breakfast.” While there are spokes made of carbon in the market, they are not widely available, and often require the use of specific hubs designed to accept them. These wheels skip a proprietary spoke and hub interface by just bonding the spokes to the hub flange. The integrated carbon spokes create a bit of a risk for ownership, which I’ll get into more below.
The Specs
- Rim: 40mm deep, hookless carbon, 22.4mm inner width, 28.5mm outer width.
- Weight: Claimed ~1249g (pair), actual weight with tape/valves (e.g., 1325g).
- Hubs: CADEX R3 (Front) & R3-C48 (Rear) Integrated Aero Hubs with Ceramic Bearings.
- Spokes: CADEX Super Aero Carbon Spokes, 16F/24R, DBL (Dynamic Balanced Lacing).
- Freehub: 48 tooth ratchet system (7.5° engagement)
- Freehub interface: Shimano HG (mounted), SRAM XDR (provided), and Campagnolo N3W (available).
- Brake Type: Centerlock disc interface.
- Axles: 100x12mm (F) / 142x12mm (R) Thru Axle.
- Tire Compatibility: Optimized for 700×28, recommended for 25 – 32.
- Max Pressure: 72.5 PSI max (hookless).
- Max Supported Weight: 285 lbs (129 kg).
- Warranty: Lifetime + 5-Year Incident Replacement (for registered owners).
- MSRP: $4500 complete wheelset ($2000 front, $2500 rear)
The lightness of being
The actual weight of the wheelset I tested, with tubeless tape and valves, was 1325g. At 76g more than the spec weight, and assuming 45g for 60mm tubeless valves and 23mm tubeless tape, the wheels are likely closer to 1280g, which is within manufacturing tolerance of the wheels. Note than the HG driver I have mounted weighs slightly more than an XD driver (perhaps 15g?).
I reached out to CADEX, and they told me that when launched in 2024, the claimed weight of the Max 40 wheelset was without tape and valves. Furthermore, they explained that the manufacturing tolerance allowed a ±5% variance in final weight. Though that may seem like a lot, it bears noting that every published review, including this one, has seen no wheelset exceed the 5% tolerance. By their own standards, CADEX is delivering its promise.
While 30g isn’t a deal breaker for me, and you’ll understand why when I describe the ride feel; however, I can imagine that the “weight weenies” might not be impressed by the mark being missed. But, at that point, isn’t that just nitpicking? Though we could soon see more wheel sets in this range, in January 2026 road bike wheels this “featherlight” remain exceedingly rare.
Integrated Carbon Architecture
Most wheels are a collection of parts—a hub, some spokes, and a rim—held together by tension. The CADEX Max 40, however, feels more like a singular, organic structure. At the core are the integrated carbon spokes seamlessly bonded directly to the aero carbon hub flanges.
By eliminating the traditional mechanical interface (either J-bend or straight-pull head), CADEX has removed a major point of potential flex and weight. This creates a one-piece hub-and-spoke unit that behaves with incredible structural unity.
When you put down the watts, there is zero feeling of ‘wind-up’—the power goes from the cassette to the road with a 1:1 immediacy that steel-spoked wheels just do not match.
Dynamic Balanced Lacing
The real magic of these wheels is the hub and spoke system visible in the photos above. But, it isn’t magic. It is highly advanced engineering.
Ewan Campbell, CADEX Global Product Marketing Communications, Sez: Dynamic Balanced Lacing (DBL) is our system-engineered design built for real-world efficiency you can feel from the first pedal stroke. It involves a wider spoke bracing angle and a 2:1 spoke configuration—14 spokes on the drive side and 7 on the non-drive side—that creates optimized leverage between pulling and pushing forces. At rest, spoke tensions are intentionally unequal. Under power, those tensions balance dynamically, increasing transmission stiffness and improving efficiency. The result is a wheel that delivers more direct power transfer, greater stability under load, and an immediately noticeable response when acceleration matters most.
Andy Sez: Ewan provided a detailed explainer about the engineering…but, on the rivet, power transfer was direct and the wheels felt unwaveringly stable. The response is instant. That’s the bottom line you need to know.
Can You Tune Them?
Yes! Despite the bonded construction at the flanges, these integrated carbon spokes can definitely be tuned. CADEX utilizes internal nipples hidden inside the rim. Therefore, unlike some other bonded carbon wheels (e.g., the Lightweight Obermayer), the Max 40 can be trued and the spoke tension can be adjusted. If the wheel takes a minor hit or ‘settles’ over time, a mechanic can still bring it back to a perfect circle.
The Elephant in the Room
The integrated carbon spokes do change the stakes if you have a catastrophic incident (read: break a spoke):
- The reality of repair: Because the spokes are bonded to the hub flange, a snapped spoke is not a 15-minute roadside fix. You cannot simply thread in a new spoke. A broken spoke requires replacement of the hub/spoke structure. Likewise, the hubs are replaceable if one suffers damage.
- The safety net: CADEX is clearly aware that this is a premium, high-stakes investment. They back the Max 40 with a Lifetime Warranty against manufacturing defects and a 5-year Incident Replacement Program.
- The Pez Take: If you’re the original registered owner and you bin it in a crit, CADEX offers a 50% discount on a replacement. It’s the “price of admission” for WorldTour-level stiffness-to-weight. In short: they are built to be remarkably tough, but if you do manage to break them, you aren’t just replacing a spoke—fortunately, with the CADEX warranty being so generous, these are far from ‘disposable’ wheels.
Road Hookless Rides On
The Max 40 utilizes a hookless bead seat. We are not going to have a discussion about hookless vs hooked here. But, it suffices to say that careful selection of tires is required to ensure the wheel and tire interface is secure. CADEX, clearly recognizing the safety implications, specify tires they’ve tested and confirmed are safe. They also provide a listing of tires that either failed the CADEX testing for compatibility or that the tire manufacturer states are incompatible with hookless rims. They also make very clear in printed and electronic media that accompany these wheels that the maximum pressure must NEVER exceed 72psi (5 bar).
To CADEX’s credit they sent along a set of their Aero Cotton tires in 28mm width, specifically designed to mate to these rims as we detailed in GearBreak in May 2025. And they did so wonderfully.
The Aero Cotton tire in 28mm width is spec’d to weigh 278g, but on my scale they came in at 295g which is closer to the claimed weight of 305g for the 30mm tire. Again, CADEX’s weight claims come up slightly short, and again it’s not a deal breaker for me, but…
Rim Width
Let’s talk about the rim dimensions. Performance-oriented riders are increasingly focused on width—in particular internal width. As the standard tire widths in the pro peloton now measure 28, 30, and sometimes 32mm, rim widths have also grown. A wider internal dimension is necessary to achieve the ideal rounded shape for the tire once inflated to facilitate a smooth, effortless lean when turning. And, a wider outer dimension is required for maximal aerodynamic efficiency of the rim/tire combo.
While my measurements taken are not scientifically precise, they represent some key points about these wheels:
- The internal width measured very close to the stated 22.4mm.
- The overall width seems to be slightly narrower than the claimed 28.5 mm.
- The bead flange was in the neighborhood of 3mm
- The actual measured width of the inflated tire at 72psi was 28.30mm, measured width at 61psi (not shown) is 27.93mm (slightly narrower than the rim, which is good!)
Riding the Cadex Max 40 Wheelset
My observations and impressions are of two varieties. First, let’s talk about tire pressure and the supplied tires. Then, we can move on to ride feel and performance. In particular, while these wheels are incredibly lightweight, the claims of wheel stiffness and immediate freehub engagement are the real story with these wheels.
I have a small urban lake near my home that is conducive to testing equipment. Looping the lake clockwise offers no left turns and only a few intersections, it presents a few sharp ramps, and most importantly traffic is low so I can focus on the test. With a break in the Michigan weather, and a slight warmup, I took these out for a few rides, putting on about 100 miles (160km) in temps ranging from 34°F up to 55°F. The test rides, being during a warm up between early winter lake effect snow cycles, were not on pristine dry tarmac.
Under Pressure
My daily driver tire/rim combo is a 30mm tire that inflates true to size on a 21mm internal width rim. Being slightly narrower, the Cadex Aero Cotton presented a bit of learning curve to find the right pressure. Used to running tires with a bit more volume, and having no reference for setting up these tires, I turned to Silca’s online pressure calculator as a starting point. Coming in at 68psi recommended, the ride was okay, if a bit on the harsh side.
It took me a couple of rides to get the pressure dialed. Once I did, settling at 61 and 62 psi (front and rear) the ~2mm narrower profile and the corresponding smaller volume provided a ride quality that was on par with my regular tires. I will note that I discovered that CADEX provides a recommended tire pressure, and the final pressures were bang on with their recommendation.
CADEX aimed for a tubular-like feel, and I believe they succeeded. The carcass uses a 320tpi construction. With the right pressure, the ride is sublime. These are race oriented tires, but they proved durable, with no punctures or issues during winter rides.
Telepathic Feeling
Once the pressure was sorted out, I focused on the ride feeling of the wheels. I can tell you, the only thing holding these wheels back was me. I simply don’t climb as well as I used to, nor can I snap a sprint that used to flex my rear triangle. But, As the hosts of a popular UK-based cycling YouTube channel would say: these wheels are “telepathic.”
Riding these wheels, it was obvious that they do not have any noticeable lateral flex. I didn’t have any fancy gauges or testing equipment to verify it, I can only go off of feeling. Power into the pedals translated directly into forward speed, and turning these felt confidence inspiring. Furthermore, equipped with 48t ratchet (maximum of 7.5° freeplay) that engages the freehub gave the feeling of “instant-on” power transfer.
Snapping a sprint at 850W catapulted the bicycle forward. Getting out of the saddle for a 30 seconds at 550W effort to ascend a short ramp launched the bicycle up the road. Despite the tires being slightly narrower than the ones I normally ride, the tires were confidence inspiring. They always felt solidly planted—no doubt owing to the 22.4mm internal width of the rims. Course corrections mid-turn felt effortless and precise. I will note than the ‘extra’ 30g was not considered or thought about until I sat down to write this up. It simply didn’t matter out on the road.
Overall Ride Impressions
In general, riding the lake course multiple times, I ended up setting PRs all around the lake by the end of the test rides. Importantly, when I looked at the power numbers, I wasn’t really smashing anything beyond my normal power range. The wheels and tires simply unlocked more speed. I cannot offer precise rolling resistance watt savings for the tires, or watts saved by the increased stiffness, but the segment times say it’s available. I can say unequivocally that I’ve never ridden a wheel or wheel/tire combo that felt this good.
The Ticket Price
I saved the hardest part of this review for last. The plain fact is that the CADEX Max 40 wheelset are the spendiest wheels I have ever ridden. At $4500 for a wheelset these are a serious upgrade investment. It could be hard to justify spending more for a wheelset than a typical mid-tier specified bicycle costs. Nevertheless, these wheels are without a doubt halo worthy.
The price may be justifiable in some measure because they have seen use in the UCI pro tour. The Giant-mounted, Australian-based Jayco-AlUla and Liv-AlUla-Jayco teams campaigned on these in the 2025 WorldTour. Notable riders using these wheels last year were Ben O’connor and fellow Australian national champ Luke Durbridge. For 2026, Liv-Jayco-AlUla (women’s WorldTour team), Team Jayco-AlUla (men’s WorldTour team) and Equipo Kern Pharma (Spanish UCI ProTeam and Giant grassroots development squad) will all run CADEX component. It is not a stretch to say that anyone mounting these at the local Wednesday Night Worlds group ride or your next Criterium race are rolling on a Grand Tour ready wheelset.
The Bottom Line
The CADEX Max 40 wheelset is “halo” worthy in every sense of the word—ultralight, surgically precise, and unapologetically expensive. By bonding carbon spokes directly to the hub flanges, and utilizing their proprietary DBL, CADEX has created an integrated system that delivers telepathic 1:1 power transfer. While the weight and rim dimensions strayed slightly from the marketing claims on our scales, the real-world performance gain is undeniable. These wheels offer WorldTour-level stiffness that makes every watt feel magnified. The integrated carbon spoke construction does mean a high-stakes repair, or replacement, process if things go sideways. But, for the rider seeking the absolute pinnacle of current wheel technology—and who has the bank account to match the ambition—the Max 40 is a masterclass in modern carbon engineering. You will get what you pay for if you take the plunge.
If you’re building a halo bike, or looking to upgrade to a WorldTour quality wheelset, the CADEX Max 40 should be at the top of your shortlist. But, with the steep entry fee, justifying their price could be a harder to overcome than the KOM time on that Strava segment you’ve been trying to bag. These are potentially the stiffest, most responsive wheel upgrade you can buy, provided you’re okay with the humbling reality that you will likely be the weakest link in the system.
Disclosure & Technical Disclaimer The CADEX Max 40 wheels and Aero Cotton tires were provided to the author for evaluation by CADEX. PezCyclingNews and the author were not compensated for this review, and all opinions are independent.
Technical Note: High-performance equipment requires precise setup. This wheelset utilizes hookless rim technology. Please consult the manufacturer’s website for compatible tires. Please consult the manufacturer’s tire pressure calculator before installation. Never exceed 72 PSI (5 bar).
The post Review: CADEX Max 40 Wheelset — Unicorns Are Real appeared first on PezCycling News.
