The 303 S offers an entirely new rim profile and design to optimize rider performance. This tubeless carbon wheel is for disc-brake bikes, allowing the ability to run wide tires at lower pressures for race-ready speed on or off the pavement. The 303 S is among Zipp's lightest wheelsets, optimized for top aero performance with a 28 mm tire but capable of handling gravel tires up to 50 mm wide.
FEATURES
SPECIFICATIONS
| Model | 303 S Tubeless Disc |
| Position | Rear |
| Material | Carbon |
| Diameter/ISO | 700C/622 |
| Axle type | 12mm TA |
| Rim depth | 45 mm |
| Internal width | 40 mm |
| External width | 23 mm |
| Hub | 176D |
| Hub spacing | 142 mm |
| Freehub body | Shimano Road 11 |
| Spokes | Sapim CX-Sprint |
| Rim drilling | 24 |
| Rim construction | Double wall |
| Valve type | Presta |
| Brake type | Centerlock Disc |
| Rim inner width range | 22-27.9 mm |
| Tubeless compatible | Yes |
| Weight | 819g |
| Color | Black |
