Summiting climbs, carving descents, or cruising the flats, the new C50 is the jack of all trades among the new ULTEGRA R8170 wheel lineup. The tubeless, carbon rim features a 21 mm internal width that pairs nicely with wider, modern tires while the HYPERGLIDE cassette body is compatible with 11 and 12-speed cassettes.
- 50 mm Carbon Rim Profile: Mid-depth full-carbon rim balances aerodynamic gains with all-around versatility
- 22 mm Internal Rim Width: Optimized for road tires, balancing low rolling resistance with confident tire support
- DURA-ACE–Derived Rim Shape: Shared rim profile with R9200 DURA-ACE wheels for proven aerodynamic performance
- Tubeless Road Efficiency: Tubeless-ready design improves comfort, traction, and efficiency on long road rides
- Drivetrain Compatibility: HYPERGLIDE freehub compatible with both 11- and 12-speed road cassettes
All-Around Aero Balance
The 50 mm carbon rim sits at the intersection of speed and versatility, offering aerodynamic benefits without sacrificing control. It’s tuned to perform across a range of road conditions, from sustained climbs to fast, rolling terrain.
Confident At Any Pace
Designed to feel composed whether accelerating on the flats, carving descents, or settling into long efforts, these wheels deliver rider confidence. Tubeless compatibility and a refined rim shape support stable handling and efficient power transfer.
SKU: EWHR8170C50LFERED
Specifications
| Bearings | Cup & cone |
|---|---|
| Brakes | CENTER LOCK Disc Brake |
| Brake Type | CENTER LOCK Disc Brake |
| External Width | 28 mm |
| Freehub | HG |
| Front Axle | 12 mm E-THRU |
| Front Weight | 698 g |
| Hub Seal | Contact |
| Hub Spacing O.L.D. Front | 100mm |
| Hub Spacing O.L.D. Rear | 142mm |
| Internal Width | 21 mm |
| Rear Axle | 12 mm E-THRU |
| Rear Weight | 872 g |
| Rim Construction | Hooked |
| Rim Height | 50 mm |
| Rim Material | Carbon |
| Spokes | 24 |
| Spoke Material | Stainless Steel |
| Spoke Type | Straight pull, bladed, butted |
| Tire Type | Tubeless Ready |
| Tubeless Ready | YES |
| Wheel Size | 700c |