ZIPP 303 S Carbon Tubeless Disc Brake Wheelset Front & Rear
Zipp’s 303 S Tubeless Disc Brake wheelset provides today’s cyclists the versatility they demand with the speed they crave.
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 our lightest wheelsets, optimized for top aero performance with a 28mm tire but capable of handling gravel tires up to 50mm wide.
The 303 S borrows design concepts from the higher-level 303 Firecrest Tubeless Disc-brake wheelset to gain speed through increased efficiency.
That is achieved by creating a wheel with reduced: Wind resistance, rolling resistance, rider fatigue, and weight.
The key innovation is in the 303 S Series’ rim design. Its 45mm rim depth is the same as its predecessor, the 302 Disc brake. But its rim width is 2mm wider, at 27mm, and its tire bed is a full 7mm wider, at 23mm.
That rim platform is designed to be the fastest with a 28mm tire. The wide rim optimizes tire profile to allow lower tire pressure. That helps to reduce rolling resistance and provides a more compliant ride.
The result of all this is a 10 percent watt savings vs. a top peer wheel in total power required to ride 40kph on a smooth flat road with a 28mm tire, according to internal Zipp testing. This groundbreaking wheelset also features all-new cosmetics, setting the rider apart from the pack, and comes at an attractive price.
SIZE (WHEELS) 700c
RIM CONSTRUCTION Carbon – Hookless
HUB 176D, 76D
TIRE COMPATIBILITY Tubeless tires only
RIM DEPTH 45mm
BRAKE COMPATIBILITY Disc (Center Lock)
DRIVER BODY TYPE SRAM XDR, SRAM/Shimano Road
RIM - INSIDE WIDTH 23mm
RIM FINISH UD fiber / Bake-On labels / Matte clear coat
RIM PROFILE Symmetrical
SPOKE LENGTH DS 264mm, 266mm
SPOKE LENGTH NDS 266mm, 268mm
WEIGHT (G) 1530
WEIGHT BASED ON Lightest configuration: 12mm through axles and XDR body. No tape or valve included in weight. Front: 711g Rear: 819g
Shipping information
Trackable Delivery
- Orders of value above S$30 will be shipped using a trackable delivery service.
- Delivery lead time shall be between 2-4 working days.
Domestic Mail Delivery
- Orders of value S$30 or lower will be shipped using Singpost postal mail (non-trackable).
- Delivery lead time shall be between 3-7 working days.
Same Day Delivery
- If you require same day delivery, please contact us at our phone lines.
- Additional fee shall apply.
Singapore Only
- Shipping charges reflected at check-out is based on delivery within Singapore only.
- We currently do not ship outside of Singapore.
- Any orders from outside of Singapore will be cancelled and the payer will have to bear losses in exchange rates, transaction fee and cancellation fee.
- Additional delivery charge of S$40 shall be imposed for delivery of bulky items to restricted areas such as the Changi Airfreight Centre. This additional charge will not be reflected during check out. We will advise on the payment method once the order has been confirmed.
Return/Exchange
- You may request for an exchange of the purchased item within 14 days after receiving your item.
- To be eligible for an exchange, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging.
- Clearance and pre-order item(s) are not eligible for exchange.
- You can contact us at ask@bikestop.com.sg. If your request is accepted, you will have to exchange the item directly at our store.
- Should you decide to mail the item to us rather than carry it to our store, you will be responsible for all shipping charges and assume the risk of loss or damage to the returned products during its transit to our store. We recommend insuring shipments.
Order Cancellation
- You can request an order cancellation by sending an email to ask@bikestop.com.sg.
- Cancellation is only possible if the order has not been shipped.
- A fee will be charged for all order cancellations. These are fees charged by the payment gateways and we are in no way profiting from these charges.
- Fee varies according to the payment method used at the point of purchase:
- Visa/Master (Locally issued card): 3.2% + S$0.50
- Visa/Master (Overseas issued card): 3.6% + S$0.50
- AMEX: 3.6% + S$0.50
- Paypal: 3.9% + S$0.50
- Refunds shall be made in Singapore dollars. No restitution shall be made for any loss in currency exchange.
- Refunds will be via the original method when the purchase was made.
- Please remember it can take some time for your bank or credit card company to process and post the refund.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as nutritional products) and custom products (such as special orders or personalized items). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.