When margins are razor-thin and consequences are real, equipment must deliver absolute confidence. Strength, precision, and control: these are the hallmarks of Reynolds wheel design, refined over decades at the highest levels of competition. From carbon innovation to race-proven reliability across disciplines, Reynolds has long stood at the forefront of performance wheel engineering. Now, that expertise arrives in alloy. Introducing the Reynolds A307 and A309 Downhill Wheels, purpose-built for bike park laps, World Cup–level racecourses, and gravity riding where every impact, compression, and landing demands total commitment. Developed by the same engineering team behind Reynolds’ elite carbon mountain wheels, the A307 and A309 DH represent a new chapter for the brand, bringing uncompromising Reynolds precision to aluminum, without compromise. Whether charging through taped race runs, stacking laps at the bike park, or pushing deeper into terrain that punishes hesitation, these wheels are engineered to perform when pressure is highest.

The 32-spoke A307 and A309 DH PRO wheels take the gravity platform and fortify it for the most demanding riders and terrain imaginable. At the center is the Ringlé Bubba hub, featuring Reynolds’ proprietary CLOCK’D™ adjustable engagement system. This dual-ring design allows riders to tune hub performance to their needs, choosing between ultra-fast 4° engagement for maximum responsiveness or 8° engagement for increased durability, efficiency, and reduced drag. One hub. Two performance profiles. Zero compromises. The system is further refined through Reynolds’ ULD (Ultra Low Drag) development approach, where every freehub component: geometry, material, spring rate, and interaction, is scrutinized and optimized to eliminate unnecessary resistance while preserving crisp, reliable engagement under real-world abuse. Rim: 30 mm internal, 6069 aluminum, welded joint Spoke Count: 32 J-bend spokes for maximum stiffness and durability Tubeless Ready: STR channel for secure setup and impact-resistant tire retention Hub: Ringlé Bubba with CLOCK’D™ adjustable engagement + ULD engineering Weight: 27.5”: 2060 g 29”: 2120 g All performance characteristics are tuned using the RTV (Reynolds Terrain Versatility) design philosophy—ensuring the optimal balance of stiffness, compliance, tracking, power transfer, and reliability for downhill-specific demands.

Every rim in the A307 and A309 Downhill range is backed by the Reynolds Lifetime Rim Guarantee, offering the same peace of mind as the brand’s top-tier carbon wheels. Because when performance is non-negotiable, trust should be unconditional. This isn’t just alloy done well. It’s Reynolds alloy: engineered for riders who push harder, go faster, and refuse to compromise.