The new Zipp 303 S Tubeless Disc-brake wheelset is designed to provide today’s demanding cyclists the versatility and performance they crave without breaking the bank. The 303 S is a lightweight wheelset that falls between the narrower non-tubeless 302 and the flagship 303 wheelset. The new carbon hoops are optimized for top aero performance with a 28mm tire but capable of handling gravel tires up to 50mm wide.
Expanding greatly on its heritage of conquering the Spring Classics, this 303 wheelset maintains its ideal-for-every-terrain 45mm rim depth but adds a significantly wider internal width to provide greater performance and ride quality in almost every measurable way. Road bikes are more versatile than ever, no matter the road surface, but just as fast as before. The 303 S offers an entirely new rim profile and design to optimize rider performance on this new breed of bike. This wheelset is tubeless 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 28mm tire but capable of handling gravel tires up to 50mm wide.
The key innovation is in the 303 S’s rim design. Its 45mm rim depth is the same as its predecessor, the 302 Disc brake . But its external rim width is 2mm wider, at 27mm, and its tire bed is a full 7mm wider, at 23mm internal width. That rim platform is designed to be the fastest with a 28mm tire. The wide rim optimizes tire profile to allow lower tire pressure; this helps to reduce rolling resistance and provides a more compliant ride. The result of all this is a 10 watt savings vs. a top peer wheel in total power required to ride 40kph on a flat road with a 28mm tire, according to internal Zipp testing.
Zipp 303 Tubeless Disc brake only
Unlike the popular Zipp 303 wheels which are big among the road and gravel cycling scene, the new 303 S wheelset is available in disc brake models only. With the ever popular growth of disc road bikes, all-road model and gravel bikes are being designed to handle 28mm tires and up, this decision only makes sense. The hubs are designed for center lock rotors and a lockring is included.
The Zipp 303 S Series rims are laced to Zipp’s 76/176 disc brake hubs with 24 Sapim CX-Sprint spokes. The rear hub utilizes the XDR driver body and also offers a Shimano compatible body.
Zipp’s new gravel wheelset also features all-new cosmetics, setting the rider apart from the pack, and comes at an attractive price. Retail prices are $625 for the front and $675 for the rear. Learn more at Zipp.com.
Zipp 303 S Tubeless Details and Specs
- Size (Wheels): 700c
- Rim Construction: Carbon
- Tire Compatibility: Clincher Tubeless Ready
- Brake Compatibility: Disc (Center Lock)
- Wheelset Weight: 1,540g
- Rim – Inside Width: 23mm
- Rim Profile: Symmetrical
- Rim Finish: Ud Fiber / Bake-On Labels / Matte Clear Coat
- Nipple Material: Brass
- Spoke Type: Cx-Sprint
- Spoke Count: 24
- Spoke Pattern: 2 Cross
- Driver Body Type: N/A, Sram XDR, Sram/Shimano Road
- Axle Type (Wheels): TA 12×100, TA 12×142
- Bearings: Cartridge – Stainless Steel
- Driver Mechanism: 3 Pawls Leaf Spring