Highlight
Be versatile. Dominate. The DURA-ACE WH-R9370-C50-TL is an all-round racing wheelset refined for lightweight performance, stiffness, and aerodynamics at RACE speeds. From the earliest design stages, testing by world-class riders informed development to pursue the optimal balance of low weight, rigidity, and aero efficiency. In addition to carbon spokes, a thoroughly revised rim layup and hub architecture deliver significant weight savings, achieving 1,302 g per pair (159 g lighter than the previous WH-R9270-C50 model) for sharper response on climbs and during acceleration. This design maintains dependable rigidity at pro-level speeds, providing stable behavior in sprints and high-speed cornering. The new rim profile delivers high aerodynamic efficiency, helping sustain speed across a broad range of conditions.
SPECIFICATIONS
| Rear | Front | |
| Series |
DURA-ACE R9370 Series |
DURA-ACE R9370 Series |
| Average Weight | 709g | 593g |
| Brake type | CENTER LOCK disc brake | CENTER LOCK disc brake |
| Axle fixing method | E-THRU | E-THRU |
| O.L.D. (mm) | 142 | 100 |
| Rear speeds | 12 | - |
| Thru Axle | 142X12MM | 100X12MM |
| D2 rim | ✔ | |
| Disc mount_140 mm Disc brake rotor compatible | ✔ | |
| Disc mount_CENTER LOCK | ✔ | |
| Front/Rear | Rear | Front |
| OPTBAL (2:1) | ✔ | ✔ |
| Spokes_Bladed | ✔ | ✔ |
| Spokes_Butted | ✔ | ✔ |
| Spokes_Number | 21 | 21 |
| Tire_Recommended size |
28-622 - 45-622 |
28-622 - 45-622 |
| Tire_Type | Tubeless | Tubeless |
| Wheel Size |
622 x 23TC (700C) |
622 x 23TC (700C) |
| Color_1 Hub shell | Black | Black |
| Spline type_HG spline L2 (ROAD 12-speed dedicated) | ✔ | - |
| Model name |
WH-R9370-C50-TL-R |
WH-R9370-C50-TL-F |
| Engagement type | Direct engagement | - |
| Rim_External width (mm) | 32 | 31 |
| Rim_Internal width (mm) | 23 | 23 |
| Spokes_Diameter (mm) | 2.0 | 2.0 |
| Specification | R | F |
