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Expanding greatly on its heritage of conquering the Spring Classics, the 303 S wheelset maintains its ideal-for-every-terrain 45mm rim depth. However, this model 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 wheels offer an entirely new rim profile and design to optimise rider performance on this new breed of bike. This wheelset is tubeless compatible and designed for disc-brake bikes, allowing the ability to run wide tyres at lower pressures for race-ready speed on or off the tarmac.
The 303 S is among Zipp's lightest wheelsets, optimised for top aero performance with a 28mm tyre but capable of handling gravel tyres 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 tyre bed is a full 7mm wider, at 23mm internal width. That rim platform is designed to be the fastest with a 28mm tyre. The wide rim optimises tyre profile to allow lower tyre pressure. That 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 tyre, according to internal Zipp testing.
This groundbreaking wheelset also features all-new cosmetics, setting the rider apart from the pack, and comes at a very attractive price.
Provides today’s cyclists with the versatility they demand with the speed they crave
Updated Zipp graphics and cosmetic identity
Fastest with 28mm, fits wide gravel tyres
Wide rims optimise tyre profile to allow lower tyre pressure, especially with tubeless. This results in a larger contact patch for increased grip
Lower tyre pressures and the larger volume provides a compliant ride with fewer vibrations
Significant watt savings when running larger tyres at lower pressure
Wide hookless rims create a seamless transition to the tyre, reducing drag
76 / 176 DB hub with centre locking interface
We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.
Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items.