Reynolds Blacklabel Enduro 29 Boost Wheelset

The Reynolds Blacklabel Enduro 29 Boost Wheelset is built for the demands of enduro and aggressive trail riding — where impact resistance matters as much as weight, and where a wheel's ability to survive a full season of hard use is the most meaningful performance metric. Reynolds has validated its gravity wheel line at the Enduro World Series and UCI Downhill World Cup level, and the Enduro 29 Boost applies that design philosophy in a 29-inch Boost package. This is not a wheel optimized for pure speed metrics. It's optimized to be alive at the end of a long day of hard riding.

The carbon rim is built using five different carbon fiber types — a construction approach that directly addresses the conflicting requirements of enduro wheel design. A rim for this application needs to be stiff enough for precise cornering and efficient power transfer, compliant enough to absorb repeated impacts without structural failure, light enough to not penalize acceleration, and durable enough to hold up under extended high-impact use. Different carbon fibers bring different characteristics — stiffness, compliance, weight, impact resistance — and combining them allows Reynolds to target specific properties in specific areas of the rim structure rather than accepting the tradeoffs of a single-material layup. The rim is 28mm deep, a low-profile that prioritizes vertical compliance and impact absorption over aerodynamic performance, appropriate for the surfaces and speeds of enduro terrain.

The internal channel measures 28mm wide (34mm external), a wide platform that supports the 2.3-2.6" tires used in enduro riding. A wider internal lets the tire form a rounder, more supported profile at lower pressures, which is what you need for traction and confidence on varied, unpredictable surfaces. Lower pressures are only practical when the rim width can support the tire properly, and at 28mm internal the Enduro 29 accommodates large-volume tires without sidewall instability. The rim is hookless and tubeless-ready — tubeless being standard practice in enduro, where running the pressures required for this kind of riding on a clincher setup creates a flat-tire liability. Disc interface is center-lock.

The Reynolds TR3 Mountain Hub is a 100%-machined hub with 3-degree engagement via a 6-pawl freehub. At 3 degrees, engagement is significantly faster than a standard trail or road hub — relevant in technical enduro terrain where power application happens in short, purposeful bursts, and where a lagging freehub translates directly to lost traction and momentum. The hub is available in three freehub configurations: Microspline for Shimano 12-speed, Shimano/SRAM for 9-11 speed systems, and SRAM XD Driver, covering all current drivetrain options. Axle spacing is 15x100mm Boost at the front and 12x142mm at the rear.

Spoke count is 28 front and 28 rear — a symmetric, higher-count distribution that prioritizes structural robustness over the lighter 20/24 count configurations used in XC and trail applications. In enduro riding, where lateral cornering forces, torsional loads under braking, and vertical impacts from drops and rock strikes are a constant part of the ride, the additional spoke count contributes to a more resilient wheel under sustained demanding use. The pair weighs 1,753g — an honest weight for a carbon enduro wheel built to this level of impact resistance. Reynolds backs the carbon rim with a lifetime guarantee, a meaningful assurance in a discipline where rim impacts are a regular occurrence. At $2,299.99, the Blacklabel Enduro 29 Boost is the right wheelset for a rider who wants race-validated Reynolds carbon construction at a spec level built for actual enduro terrain.