The Reynolds TR 309 S 29″ Boost Wheelset is a versatile trail-focused upgrade built to handle everything from fast XC-style sprints to aggressive, technical descents. Drawing from the technology of Reynolds’ premium Blacklabel series, these wheels feature an asymmetric carbon rim with a 30mm internal width, offering a perfect blend of stiffness, strength, and compliance. Whether you’re racing up punchy climbs or charging through rock gardens, the TR 309 S delivers the performance and durability you need.

Built with Reynolds’ MR5 carbon layup, the rims utilize five precisely placed carbon matrices to reinforce impact zones while maintaining a lightweight profile. This design maximizes strength without unnecessary weight, keeping the ride lively and responsive. The hookless, tubeless-ready rim profile allows for quick setup, lower pressures, and excellent puncture resistance, giving riders confidence on demanding terrain.

At the core of the TR 309 S is Reynolds’ CNC-machined TR6 hub, offering 72 points of engagement with 5-degree increments for near-instant power transfer. Six phased pawls work in unison to provide rapid engagement, ideal for quick accelerations out of corners or off the line. Paired with Boost spacing, these wheels offer improved spoke bracing angles for better lateral and torsional stiffness.

From rugged enduro lines to long backcountry loops, the TR 309 S is ready to roll with strength, precision, and a rider-first design that emphasizes control and capability.

Key Features

• MR5 Carbon Rim Construction Five carbon matrices tuned for strength, impact resistance, and low weight.
• TR6 Hub with 5 Engagement CNC-machined aluminum hub with 72 points of engagement for fast, responsive power transfer.
• 30mm Internal Width Ideal for 2.32.6 tires, providing support, traction, and better cornering with modern trail rubber.
• Asymmetric Rim Profile Balances spoke tension for a stiffer, stronger wheel with improved durability.
• Boost Spacing Widens hub flange for increased torsional and lateral stiffness, enhancing control and handling.