Princeton Grit 4540 Disc Brake Wheelset w/White Industries Hubs

The Princeton Grit 4540 Disc Brake Wheelset w/White Industries Hubs was built for riders who refuse to choose between road performance and real-world capability. Not a gravel wheel with road ambitions, not a road wheel grudgingly pressed into rougher service — the Grit 4540 was engineered from the ground up to move fast on pavement and hold its composure when the road turns to chip seal, gravel, or something worse. That dual-purpose mandate shaped every design decision Princeton CarbonWorks made.

The rim profile is where that philosophy becomes engineering. The Grit 4540 uses Princeton's signature undulating cross-section — a wave-shaped rim wall that varies in depth between 45mm and 40mm around the circumference. This is not a stylistic choice. The varying geometry gives the rim aerodynamic depth where it contributes most to efficiency while reducing material where it saves weight without sacrificing stiffness. The practical result is a wheel that handles crosswind gusts with more predictability than a uniform deep-section design. Rather than presenting a flat wall to lateral air, the rim's shape deflects and manages it. On long exposed roads, in the mountains, or mid-race when a crosswind arrives unexpectedly, that stability translates directly into confidence — and confidence lets you hold your line instead of spending energy fighting the bike.

The hub choice is equally deliberate. White Industries hubs, made in Petaluma, California, have built a reputation over decades for tight manufacturing tolerances, durable internals, and engagement that doesn't degrade after years of real use. This isn't a house-brand component selected to manage costs. Pairing White Industries' mechanical precision with Princeton's carbon engineering produces a wheelset that's genuinely built to be ridden hard and kept for a long time — which, for the right rider, changes the calculation entirely.

Princeton Grit 4540 Disc Brake Specs at a Glance

• Rim Depth: 45mm peak / 40mm trough (undulating profile)
• Rim Construction: Princeton CarbonWorks carbon fiber
• Brake Type: Disc brake
• Tire Compatibility: Tubeless-ready
• Hub Brand: White Industries (Petaluma, CA)
• Drivetrain Options: Campagnolo, HG11 (Shimano / SRAM 11-speed), XDR Driver
• Rim Color: Black
• Intended Use: Road, gravel, mixed-terrain

Design Benefits

1. Undulating Rim Profile — Aero Depth Without the Crosswind Penalty: The wave-shaped rim wall alternates between 45mm and 40mm of depth, giving you aerodynamic efficiency where it matters while managing lateral wind loads more gracefully than a uniform deep section. On open roads where wind is a factor, the Grit 4540 stays composed in conditions that would have a shallower or less considered wheel demanding constant input.
2. Tubeless-Ready Construction — Fewer Interruptions, More Riding: The rim is designed to run tubeless out of the box, which means lower tire pressure for better grip and compliance, reduced rolling resistance over rough surfaces, and the added security of sealant that handles most minor punctures without requiring a stop. On long days with variable terrain, that reliability matters.
3. White Industries Hubs — Built for Longevity, Not Just Spec Sheets: White Industries manufactures its hubs in-house in California to tolerances that most mass-produced hubs don't approach. The internals are designed to be serviced and rebuilt over time, not replaced. That means the engagement feels the same on year three as it did on day one — and when something eventually does wear, it's fixable rather than disposable.
4. Disc Brake Compatibility — Consistent Stopping Power in Any Condition: Running disc brakes removes rim braking from the performance equation entirely. Wet roads, long descents, and heavy loads have no meaningful effect on stopping consistency. The rim is free from the heat and wear demands of a brake track, which also contributes to the long-term structural integrity of the carbon.
5. Multi-Drivetrain Availability — Fits the Bike You Already Own: Available in Campagnolo, HG11, and XDR driver configurations, the Grit 4540 covers the full range of modern road and gravel drivetrains. Whether you're running Shimano, SRAM AXS, or Campagnolo, there's a version built to match your setup without compromise.

Final Take

The Princeton Grit 4540 with White Industries hubs is a wheelset for the rider who covers serious miles on roads that aren't always cooperative — someone who wants aerodynamic performance on fast tarmac without giving up stability when the surface or the wind changes. Paired with hubs that are built to last and support a tubeless setup that keeps you rolling through the rough patches, the Grit 4540 is a wheelset worth buying once and riding for years.