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Introducing Reynolds A307 | A309 Enduro Aluminum Wheels
Mar 17, 2026
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Performance Forged for Gravity: Introducing the Reynolds A307 / A309 Enduro & DH Range
Strength, precision, and control, these are the hallmarks of Reynolds wheel design, refined over decades of experience building some of the world’s most advanced performance wheels. From carbon innovation to race-proven reliability across disciplines, Reynolds has long stood at the leading edge of performance wheel engineering.
Now, that expertise arrives in alloy. Introducing the A307 and A309 Enduro and Downhill Wheels, a new line designed from the ground up for the speed, power, and punishment of modern gravity riding. Developed alongside the same engineers who shaped Reynolds’ elite carbon mountain line, these wheels mark the beginning of a new chapter for the brand: bringing Reynolds precision to a new element of performance. Whether between the tapes at professional races, hitting hot laps at the bike park or taking on those long descents full of technical terrain at full speed, there is now yet another fantastic Reynolds solution capable of improving your time in the saddle.
Now, that expertise arrives in alloy. Introducing the A307 and A309 Enduro and Downhill Wheels, a new line designed from the ground up for the speed, power, and punishment of modern gravity riding. Developed alongside the same engineers who shaped Reynolds’ elite carbon mountain line, these wheels mark the beginning of a new chapter for the brand: bringing Reynolds precision to a new element of performance. Whether between the tapes at professional races, hitting hot laps at the bike park or taking on those long descents full of technical terrain at full speed, there is now yet another fantastic Reynolds solution capable of improving your time in the saddle.
#MoreThanAMedium
Built for Gravity. Engineered for Every Line.
The A307 and A309 Enduro and DH range was conceived with one objective: deliver uncompromising strength and stability while preserving the responsive ride feel that defines every Reynolds wheel. The foundation is a new 30 mm internal width rim profile, optimized for today’s aggressive tire volumes and E-MTB-ready casings.
Constructed from 6069 aluminum with a precision-welded joint, each rim offers the structural consistency and impact resistance expected from a premium gravity wheel, a level of craftsmanship many competitors achieve only in carbon. Combined with a sandblasted matte finish and premium water-transfer decals (PRO), every detail speaks to Reynolds’ design ethos: no shortcuts, no compromises, just pure performance.
Constructed from 6069 aluminum with a precision-welded joint, each rim offers the structural consistency and impact resistance expected from a premium gravity wheel, a level of craftsmanship many competitors achieve only in carbon. Combined with a sandblasted matte finish and premium water-transfer decals (PRO), every detail speaks to Reynolds’ design ethos: no shortcuts, no compromises, just pure performance.
Enduro: The All-Day Gravity Performer
The A307 and A309 Enduro models are built for riders who climb to earn their descent as they are strong enough for abuse yet light enough for all-day efficiency.
Rim profile: 30 mm internal / 6069 aluminum, welded joint
Spoke count: 28 direct-pull premium double-butted spokes
Tubeless-Ready STR channel for easy setup and no-burp tire retention.
RTV: Reynolds Terrain Versatility Design Philosophy – confers absolute confidence
Hub options:
A307 and A309 Enduro Pro: Ringlé Super Bubba X, CNC-machined, with lightning-fast 4° engagement.
A307 and A309 Enduro Expert: Ringlé SRX, precision-machined with 12° engagement, offering refined performance and long-term value.
Both hubs benefit from the unique Reynolds ULD (Ultra Low Drag) approach to development conferring effortless speed, crisp engagement, and unparalleled reliability
At just 1874g (27.5”) and 1934g (29”) (PRO), the Enduro series balances toughness and agility, ready for the repeated hits, compressions, and lateral loads that define the discipline.
Rim profile: 30 mm internal / 6069 aluminum, welded joint
Spoke count: 28 direct-pull premium double-butted spokes
Tubeless-Ready STR channel for easy setup and no-burp tire retention.
RTV: Reynolds Terrain Versatility Design Philosophy – confers absolute confidence
Hub options:
A307 and A309 Enduro Pro: Ringlé Super Bubba X, CNC-machined, with lightning-fast 4° engagement.
A307 and A309 Enduro Expert: Ringlé SRX, precision-machined with 12° engagement, offering refined performance and long-term value.
Both hubs benefit from the unique Reynolds ULD (Ultra Low Drag) approach to development conferring effortless speed, crisp engagement, and unparalleled reliability
At just 1874g (27.5”) and 1934g (29”) (PRO), the Enduro series balances toughness and agility, ready for the repeated hits, compressions, and lateral loads that define the discipline.
RTV: Reynolds Terrain Versatility
RTV is the Reynolds off-road design philosophy that defines how we engineer wheels for every discipline without compromise. It is the framework through which we balance all the forces that matter off-road: lateral stiffness, engineered compliance, tracking and handling, power transfer, weight, reactivity, and tire dynamics…to arrive at the optimal solution for each intended use.
Every wheel developed under the RTV approach is validated through rigorous in-house laboratory testing and real-world riding at the highest levels of competition, ensuring that discipline-specific performance is matched by unmatched reliability. The result is not a generic, one-size-fits-all wheel, but a precisely tuned solution that delivers the best possible blend of speed, control, traction, and durability for its terrain and purpose.
Complete System Precision
A309 Enduro A307 Enduro Pro
Featuring the Ringlé Super Bubba X hub, CNC-machined and delivering lightning-fast 4° engagement for immediate power transfer in technical sections.
Outer Rim Width – 35.5mm | Internal Rim Width – 30mm | Rim Depth: 20mm | Rim Material: 6069 Aluminum | Rim size: 27.5in, 29in | Hub: Front Ringlé Super Bubba | Rear Ringlé Super Bubba X | Spoke Type: Wheelsmith DB14 | Nipple: Wheelsmith Brass | Engagement: 4° | Spoke Count: 28 Front, 28 Rear | Brake Interface: 6 Bolt | Freehub: Shimano Micro Spline, SRAM XD Included and Shimano HG available | Weight (27.5in): 872g (front), 1002g (rear), 1847g (set) | Weight (29in): 902g (front), 1032g (rear), 1934g (set)
Outer Rim Width – 35.5mm | Internal Rim Width – 30mm | Rim Depth: 20mm | Rim Material: 6069 Aluminum | Rim size: 27.5in, 29in | Hub: Front Ringlé Super Bubba | Rear Ringlé Super Bubba X | Spoke Type: Wheelsmith DB14 | Nipple: Wheelsmith Brass | Engagement: 4° | Spoke Count: 28 Front, 28 Rear | Brake Interface: 6 Bolt | Freehub: Shimano Micro Spline, SRAM XD Included and Shimano HG available | Weight (27.5in): 872g (front), 1002g (rear), 1847g (set) | Weight (29in): 902g (front), 1032g (rear), 1934g (set)
A309 Enduro A307 Enduro Expert
The Expert model features the durable Ringlé SRX hub, with 12° engagement for riders who want elite-level performance with everyday resilience.
Both models use premium double-butted spokes and combine strength, aesthetics, and craftsmanship worthy of the Reynolds name and both cn count on amazing performance, efficiency and longevity thanks to the unique ULD development approach that Reynolds takes on each and every project.
Outer Rim Width: 35.5mm | Internal Rim Width: 30mm | Rim Depth: 20mm | Rim Material: 6069 Aluminum | Rim size: 27.5 | Hub: Front Ringlé SRX| Rear Ringlé SRX | Spoke Type: Wheelsmith DB14 | Nipple: Wheelsmith Brass | Engagement: 12° | Spoke Count: 28 Front, 28 Rear | Brake Interface: 6 Bolt | Freehub: Shimano Micro Spline, SRAM XD Included and Shimano HG available | Weight (27.5in): 912g (front), 1042g (rear), 1954g (set) | Weight (29in): 942g (front), 1072g (rear), 2014g (set)
Outer Rim Width: 35.5mm | Internal Rim Width: 30mm | Rim Depth: 20mm | Rim Material: 6069 Aluminum | Rim size: 27.5 | Hub: Front Ringlé SRX| Rear Ringlé SRX | Spoke Type: Wheelsmith DB14 | Nipple: Wheelsmith Brass | Engagement: 12° | Spoke Count: 28 Front, 28 Rear | Brake Interface: 6 Bolt | Freehub: Shimano Micro Spline, SRAM XD Included and Shimano HG available | Weight (27.5in): 912g (front), 1042g (rear), 1954g (set) | Weight (29in): 942g (front), 1072g (rear), 2014g (set)
ULD: Ultra Low Drag Development Approach
ULD is the Reynolds engineering approach that scrutinizes every freehub component, geometry, material, and interaction, to eliminate unnecessary drag and maximize efficiency. By refining pawl profiles, engagement geometry, spring rates, and surface finishes, Reynolds converts more rider input into forward motion without compromising durability. The result is crisp, reliable engagement and effortless speed, achieved through meticulous design rather than shortcuts.
Crafted to Go the Distance
Enduro racing and riding punish equipment over time. That’s why Reynolds insists on welded rim construction: stronger, cleaner, and more reliable than pinned alternatives. The result is a wheelset that maintains spoke tension, tracks precisely, and delivers consistent performance ride after ride.
This is durability engineered not just to survive, but to thrive across seasons of aggressive riding.
Confidence, Backed for Life
Every rim in the A309 and A307 Enduro range is backed by the Reynolds Lifetime Rim Guarantee, offering the same peace of mind as Reynolds’ premium carbon wheels. It’s a clear statement of confidence in the product and a commitment to riders who demand reliability without compromise.
This isn’t just alloy done right. It’s Reynolds alloy, purpose-built for Enduro riders who expect efficiency on the climb, authority on the descent, and performance that lasts.
Reynolds Aluminum Line
