Juego de ruedas Reynolds Blacklabel Plus 27,5

The Reynolds Blacklabel Plus 27.5 Wheelset is purpose-built for riders who have committed to the Plus format — the 40mm internal rim width is not a compromise or a crossover spec, it's the whole point. Reynolds' MR5 carbon construction and Industry Nine Hydra hubs bring the same engineering discipline found across the entire Blacklabel line to a rim designed specifically for the voluminous, high-traction tire profiles that define 27.5+ riding.

Reynolds built the Blacklabel Plus around their proprietary MR5 construction — five distinct carbon layup zones applied across five distinct regions of the rim, each independently tuned for the structural demands of that section. The bead walls carry the stiffness required to hold tubeless pressure under a massive tire load; the center section is engineered for the kind of compliance that absorbs repeated trail chatter without fatiguing the rim. At 24mm deep and 45mm wide across the outer profile, the rim keeps rotational inertia low enough to stay lively while supporting the tire volumes this format demands. The asymmetric hookless bead profile equalizes spoke tension across the drive and non-drive sides — a detail that matters even more at this rim width, where lateral loads under cornering are amplified by the increased tire volume and lower pressures.

The wheels roll on Industry Nine Hydra hubs at 0.52° of engagement, with six independently spring-loaded pawls working simultaneously. The Hydra's instant response is a meaningful spec for Plus riding, where the traction advantage of a 2.8" or 3.0" tire at low pressure depends entirely on smooth, continuous power delivery — hesitation in the drivetrain translates directly to momentum loss. The wheelset is available in both Boost (15×110mm F / 12×148mm R) and Super Boost (15×110mm F / 12×157mm R) axle standards, covering the full range of dedicated Plus bike geometry and wider-dropout enduro frames. Freehub options span Shimano Microspline, Shimano HG, and SRAM XD Driver.

Design Benefits

1. MR5 Carbon at Plus Width: Building a 40mm internal rim in carbon without excessive weight requires precise zone-by-zone layup engineering. Reynolds' MR5 construction applies five distinct carbon schedules to five structural regions — keeping the 1,795g total weight reasonable for this rim width while maintaining the stiffness and impact resistance that Plus-format riding demands. The result is a rim that doesn't feel like a compromise between weight and durability.
2. 40mm Internal Width: Plus tires — 2.8", 2.6+, 3.0" — need a rim platform wide enough to let the casing assume its designed shape at low pressures. The 40mm internal width supports the bead at the correct angle, allowing the sidewall to round out fully and the contact patch to spread consistently across terrain. Run these tires on a narrower rim and you lose the traction benefits the casing is designed to deliver.
3. Industry Nine Hydra Engagement: At 0.52° of rotational play, the Hydra hub engages in less than one degree of crank movement. Six independently spring-loaded pawls fire simultaneously rather than sequentially, eliminating the dead zone characteristic of conventional ratchet designs. On Plus bikes where the tire's traction envelope is wide but power delivery must be precise, that immediate response keeps the wheel driving forward through technical trail features.
4. Hookless Tubeless Ready Construction: The straight hookless bead wall provides a consistent, reliable tubeless seating surface — particularly important with the higher volume and lower pressures of Plus tires, where a compromised bead seat is more likely to cause issues. Reynolds backs the rim with a lifetime warranty to the original owner, which speaks to the confidence behind the construction.

Final Take

The Reynolds Blacklabel Plus 27.5 is the wheelset for riders who have built their bike around Plus tires and want a carbon platform that actually matches the format's engineering requirements. The 40mm MR5 rim and Hydra hubs aren't added as a spec upgrade — they're the reason to choose these wheels. If you're riding 27.5+ and taking it seriously, the Blacklabel Plus is where the build should start.