Versatility. Dominance. The DURA-ACE WH-R9370-C50-TL is an all-round race wheelset optimized to deliver lightness, stiffness, and aerodynamics at race speeds. From the initial design stages, testing by world-class cyclists guided development toward achieving an optimal balance of lightness, rigidity, and aerodynamic efficiency. In addition to carbon spokes, the radically redesigned rim and hub structure ensures significant weight reduction—bringing the set to 1,302g (159g lighter than the previous WH-R9270-C50 model)—for more precise responsiveness on climbs and during acceleration. This design maintains optimal stiffness at professional speeds, ensuring stability during sprints and high-speed cornering. The new rim profile delivers high aerodynamic efficiency, helping to maintain speed across a wide range of conditions.
FEATURES Rim depth: 50 mm Wheelset weight: 1,302 g (Front: 593 g / Rear: 709 g) Designed for 28-30C tires: 23 mm internal rim width reduces rolling resistance and maintains tire stiffness Aerodynamically optimized rim: over 5.4 million shape simulations resulted in a 6% aerodynamic improvement over the previous model Carbon spokes: carbon spokes optimized to balance low system weight with stiffness Spoke count - Front 21 / Rear 21: combined with mixed-diameter carbon spokes to ensure lightness and stiffness for versatile use Hooked tubeless rim: supports a wide range of tire compatibility Cup-and-cone bearing system: easy maintenance and precision adjustment ensure speed and durability Rear wheel - DIRECT ENGAGEMENT: superior stiffness for maximum power transfer
FRONT Item Code: EWHR9370C50LFEDB EAN Code: -
PRODUCT SPECIFICATIONS Model Number: WH-R9370-C50-TL-F Series: DURA-ACE Model Name: WH-R9370-C50-TL Specifications: F12-700C Color: 1 Hub shell / Black Brake Type: CENTER LOCK disc brake O.L.D. (mm): 100 Wheel Size: 622 x 23TC (700C) Tire: Type: Tubeless / Recommended Size: 28-622 - 45-622 Rim: Height (mm): 50 / Internal Width (mm): 23 / External Width (mm): 31 / Rim Tape Required: YES Spokes: Number: 21 / Diameter (mm): 2 Axle Fixing Method: E-THRU Disc Mount: CENTER LOCK: YES / Compatible with 140 mm disc brake rotor: YES OPTBAL (2:1): YES Seal: Hub: Contact Reflector: JIS / CPSC: CATEYE RR-550-WUW SW / AS: CATEYE RR-550-WUA SW / DIN: CATEYE RR-317-WUA SW Average Weight: 593 g
REAR Item Code: EWHR9370C50RFEDB EAN Code: -
PRODUCT SPECIFICATIONS Model Number: WH-R9370-C50-TL-R Series: DURA-ACE Model Name: WH-R9370-C50-TL Specifications: R12-700C Color: 1 Hub shell / Black Brake Type: Brake CENTER LOCK disc Sprockets: 12 O.L.D. (mm): 142 Wheel size: 622 x 23TC (700C) Tire: Type: Tubeless / Recommended size: 28-622 - 45-622 Rim: Height (mm): 50 / Internal width (mm): 23 / External width (mm): 32 Rim tape required: Yes Spokes: Number: 21 / Diameter (mm): 2 Axle fixing method: E-THRU Spline type: HG L2 (Road 12-speed specific): Yes Engagement type: Direct engagement Disc mount: CENTER LOCK: Yes / Compatible with 140 mm disc brake rotor: Yes OPTBAL (2:1): Yes Seal: Hub: Contact / FREEHUB body: Contact Reflector: JIS / CPSC: CATEYE RR-550-WUW SW / AS: CATEYE RR-550-WUA SW / DIN: CATEYE RR-317-WUA SW Average weight: 709 g
EWHR9370C50P-HG
Data sheet
Diameter
Ita/Eng
Code
SH260926
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