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Stan's NoTubes ZTR Iron Cross Pro Disc Wheelset - Tubeless $0.00
For those of us looking to up our cyclocross game, transitioning from clinchers to tubeless can make a world of difference in speed, handling, and overall effectiveness out on the course. With Stan's NoTubes' impeccable reputation for building race-ready wheels boasting industry-leading tubeless design, the ZTR Iron Cross Pro Disc Wheelset is the ticket to the next level. Built specifically for cyclocross, these wheels clock in as the lightest of the Iron Cross line and are ready to throw down with the best to challenge for the win.
Despite being the lightest wheels in the line-up, the Iron Cross Pros utilize the same Bead Socket Technology (BST) found throughout the Iron Cross series, which features low profile sidewalls that provide a better seat for the tire bead and allow for a heap of benefits compared to standard rims with higher sidewalls. When setup as tubeless, BST provides an exceptional seal while allowing the tire to hold a greater volume of air than standard rims, which place the bead 2-4mm below the edge. This interface lets the tire maintain its full shape for a wider, more stable rolling platform than if the same tire were mounted on a standard rim.
When BST is paired with the ability to run up to 30% lower air pressure than a standard clincher, the results are exceptional tire stability, better handling, solid cornering, and better overall control out on the course. These rims are also compatible with standard tubes, with the lower sidewall drastically reducing pinch flat risk by reducing the amount of material present for the tube to pinch against. This means less time running to the pit with a flat and more time battling for position out on the course.
Stan's laces the Iron Cross Pro rims to its own 24-hole 3.30Ti hub up front and a 28-hole 3.30RDTi hub in the rear, both of which upgrade the standard, chromoly NoTubes' bearings to smooth-spinning stainless steel cartridge bearings that glide on lightweight 7075 Alloy axles. The rear hub body boasts beefy 58mm flanges, while the driveside houses a hardened, 30-point engagement ring. At the front, a similarly beefy 58mm disc-side flange manages braking force while a 45mm flange on the non-disc side balances strength and weight. The freehub is compatible with SRAM and Shimano 11-speed cassettes.
The Stan's NoTubes ZTR Iron Cross Pro Disc Wheelset comes complete with Stan's yellow rim tape and 35mm Red Alloy valves already installed for tubeless use - just add your favorite tubeless-ready tire, sealant, and air to get race-ready in a cinch. Please note that the ZTR ZTR Iron Cross Pro Disc Wheelset has a maximum tire pressure of 45 PSI and a maximum recommended rider weight of 170lbs.
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Reviews & Community
- Familiarity: I've put it through the wringer
These wheels are the perfect set of hoops for cross racers looking for a light, race-worthy wheelset that won't completely break the bank account like a set of carbon rims. And the super low-profile tubeless rim is nothing short of amazing for tubeless reliability.
I set them up tubeless with a set of Clement MXPs, which seated into place in a snap with a quick shot of C02 (I didn't feel like going all the way to the shop to find a compressor). I opted for the valve stem route to add in some Stan's sealant and avoid any bead re-seating issues, and they've held air like champs ever since.
First race out, I managed to bottom out and smack the rim, hard enough for spectators to comment on it, against a hidden sidewalk edge twice without any tire damage or pressure loss. Which is pretty amazing in general, but especially considering I'd done almost the exact thing a week prior on a set of ENVE M50s (same tires, also tubeless), which flatted immediately and put a sizeable slice in the tire. Stan's for the win there.
I should note that I'm kind of a small person, so I can run near- tubular pressures on these rims. I've been running them at about 25PSI just due to the nature of the courses I've raced recently, but Stan's recommends that I could drop well into the teens without any issues. Bigger riders may have a different experience with this and may experience some flex with the low spoke count.
In general, these wheels aren't carbon, but the difference between them and a set of carbon rims that'll cost three times as much is negligible (especially considering cost). They snap up to speed fast, roll smooth, corner on rails, and just generally go where I want them to. And Stan's rim design is just hands down better than anyone else out there for tubeless.