The Fastest Way to Save Watts
When you're racing against the clock, there are no wheels to follow, no tactics to hide behind and no excuses.
Every watt is yours alone.
Every second matters.
Developed with the world's fastest time trial specialists and raced in secret throughout the 2026 season before its official launch, the new Shimano DURA-ACE WH-R9370-D-TL Rear Disc Wheel represents Shimano's most aerodynamic wheel ever produced. Designed to work alongside the new DURA-ACE C99 front wheel, it creates Shimano's ultimate aerodynamic race setup for time trials and triathlon.
Now available from The Endurance Hub.
Built For Pure Speed
This is not an everyday wheel.
This is a purpose-built racing weapon designed for:
✔ Time Trials
✔ Triathlon
✔ Ironman
✔ Long-distance Triathlon
✔ Fast, flat courses
✔ Riders chasing every possible aerodynamic advantage
If you're aiming for a personal best or standing on the podium, this is the wheel Shimano designed for you.
Developed at the Highest Level
The new DURA-ACE wheel range was developed alongside WorldTour teams and elite time trial specialists before making its public debut after the Tour de France. Shimano's latest aerodynamic technology, carbon construction and updated hub design have all been refined under real race conditions to maximise speed and efficiency.
Full Carbon Disc Construction
Nothing is faster than a properly engineered disc wheel.
Shimano's new full-carbon disc construction delivers:
- Maximum aerodynamic efficiency
- Exceptional lateral stiffness
- Outstanding power transfer
- Stable handling in fast conditions
- Reduced aerodynamic drag
Whether you're riding solo against the clock or racing the final leg of an Ironman, every pedal stroke is converted into forward speed.
Shimano's New Direct Engagement Freehub
One of the biggest upgrades is hidden inside the hub.
Shimano has introduced a completely redesigned direct engagement freehub, replacing traditional pawl engagement with interlocking drive faces.
The result?
✔ Faster engagement
✔ More direct power transfer
✔ Increased durability
✔ Quicker acceleration
Every watt reaches the road faster.
Legendary Shimano Hub Performance
Despite the aerodynamic revolution, Shimano has retained the feature many riders refuse to give up...
Its famous adjustable cup-and-cone bearings.
Known for incredibly smooth rolling performance and exceptional longevity, the updated hub features:
- Optimised bearing preload
- Improved rotational efficiency
- Borazon-treated bearing races
- Super mirror finish
- Oversized 7075 aluminium axle
- Cold-forged aluminium hub shell
- Exceptional long-term reliability
Advanced Weather Protection
Race in confidence whatever the conditions.
Shimano's proven Labyrinth Double Contact Seals keep water, grit and road contamination away from the bearings, helping maintain smooth performance season after season.
Designed Around Modern Tyres
The WH-R9370-D-TL is fully compatible with:
✔ Tubeless Ready tyres
✔ Clincher tyres
✔ 28mm tyres
✔ 30mm tyres
The wider tyre compatibility improves rolling resistance, comfort and grip without compromising aerodynamic performance.
Aerodynamics Without Compromise
Disc wheels remain the fastest rear wheel option available for:
- Flat Time Trials
- Long Triathlons
- Ironman Racing
- National Championships
- PB Attempts
Combined with Shimano's new aerodynamic development programme, the WH-R9370-D-TL is engineered to deliver the lowest possible drag while maintaining exceptional stiffness under maximum power.
Why Choose Shimano?
Unlike many ultra-light boutique wheel manufacturers, Shimano combines cutting-edge aerodynamics with long-term durability, serviceability and proven reliability.
That's why Shimano wheels are trusted by WorldTour teams, elite triathletes and dedicated amateur racers around the world.
Why Buy From The Endurance Hub?
Buying a premium disc wheel is about much more than simply placing an order.
When you buy from The Endurance Hub you'll benefit from:
✔ Expert advice on compatibility
✔ Guidance on tyre choice and pressures
✔ Cassette installation
✔ Rotor fitting
✔ Tubeless setup support
✔ Professional workshop installation
✔ Ongoing servicing and aftercare
We'll ensure your new wheel is perfectly matched to your bike and race goals.
Crash Replacement Programme
The Shimano DURA-ACE WH-R9370-D-TL is covered by Shimano's Crash Replacement Programme (Terms & Conditions apply).
Ask us in-store for full details.
Our Verdict
Shimano hasn't simply released another disc wheel.
They've produced an entirely new benchmark for aerodynamic racing.
With full-carbon construction, the latest direct engagement freehub, proven cup-and-cone bearing technology and WorldTour-developed aerodynamics, the WH-R9370-D-TL is built for riders who refuse to leave speed on the table.
If you're serious about time trials or triathlon, this is one of the fastest upgrades you can make.
Perfect For
✔ Time Trial Racing
✔ Ironman
✔ Middle Distance Triathlon
✔ Long Course Triathlon
✔ National Championships
✔ PB Attempts
✔ Aero Road Bikes
✔ TT Bikes
Available Now at The Endurance Hub
Be among the first riders in the UK to own Shimano's latest aerodynamic disc wheel technology.
Maximum Aero. Maximum Speed. Zero Compromise.