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ZIPP 303S Tubeless Disc Brake Wheelset
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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.
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Item description
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.
https://www.duckingtiger.com/wp-content/uploads/2020/05/zipp-303s-4-1568x1045.jpg

Features

  • Zipp graphics and cosmetic identity that scream speed
  • Fastest with 28mm, fits wide gravel tires as well
  • 76 / 176 DB hubs with Center locking interface
  • XDR driver body option
  • Wide rims optimize tire profile to allow lower tire pressure, especially with tubeless. The result is a larger contact patch for increase grip for confident cornering, descending, and handling in wet conditions.
  • Lower tire pressures and larger volume provides a compliant ride with fewer vibrations.
  • Significant watt savings when running larger tires at lower pressure.
  • Wide hookless rims create a seamless transition to the tire, reducing drag.
Zipp 303S review - Wheelsets - Wheels - BikeRadar

Specifications

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

n/a, SRAM XDR, SRAM/Shimano Road

Rim - inside width

23mm

Max recommended system weight

286lbs/130kg

Max tire pressure

73psi

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

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888bike1@gmail.com
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Return/Refund Policy

  1. The company accepts product returns or exchanges within 7 business days from the date the customer signs for the delivery. If this period has passed, the company reserves the right to decline any returns or exchanges.

  2. Products to be returned or exchanged must be in their original condition, undamaged from use, and unaltered. This includes retaining the price tags, brand tags, original bicycle box, manuals, and packaging in the same condition as when delivered. Proof of purchase, photographic evidence, and a confirmation document from the service center verifying the damage must also be provided.

  3. Shipping costs for returns, exchanges, or repairs at the main office must be borne by the customer in all cases. Shipping fees are non-refundable.

  4. Please record a video while unboxing the received product as evidence. Without such a video, the company reserves the right to decline any returns or exchanges.

Customers may return or exchange products under the following conditions:

  1. The product is the wrong model, color, or size.
  2. The product differs significantly from or does not resemble the images displayed on the product detail page.
  3. The product is damaged, defective, or non-functional upon receipt.
  4. The company reserves the right to inspect the condition of returned products before dispatching a replacement.
  5. Returns or exchanges are not accepted in cases where:
    • The customer is dissatisfied with the product.
    • The customer wishes to exchange for a different model.
    • The customer ordered the wrong model.
    • The bicycle has been assembled and test-ridden.
  6. The company reserves the right to accept returns or exchanges only under the policies and conditions set by the company.
  7. Shipping fees are non-refundable in cases of product refunds.
  8. For bicycles shipped in boxes, the assembly will be completed up to 85%, and assembly fees are not included.

Customers must notify the company immediately upon discovering any product issues via the following channels:

  • Tel: 094-7031888
  • Email: 888bike1@gmail.com
  • Hours: 10:00 AM–7:00 PM daily (excluding Sundays and public holidays).

Return/Exchange Policy for Products within 7 Days

  1. The 7-day return/exchange warranty starts from the day the customer receives the product, counted as Day 1, regardless of the time of receipt.

    • Example:

      • Customer 1 receives the product on Day 1 at 11:00 AM.
      • Customer 2 receives the product on Day 1 at 6:00 PM.
      • The warranty period for both customers starts on Day 1 and ends on Day 7.
    • Exchanges are limited to the damaged product only. If accessories are damaged, they will be repaired instead of replaced.

    • Proof of purchase (receipt or tax invoice) is required for product exchanges. The product must be returned in its original box with all accessories intact.

    • Damaged products must meet the warranty conditions and be in the specified condition.

  2. For products with unclear or intermittent issues that are not immediately apparent during initial inspection, the company reserves the right to evaluate them under its conditions.

  3. The inspection process for returned or repaired products may take approximately 15-20 business days.


Refund Policy

  1. For customers who paid in full or in installments via credit cards issued by registered banks in Thailand, refunds will be credited back to the same card used for payment. This process takes approximately 30 business days from the date the customer is notified by the call center, depending on the credit card billing cycle of the issuing bank.

  2. For customers who paid in full via counter service or cash on delivery, refunds will be transferred to the bank account provided by the customer. This process takes approximately 30 business days from the date the customer is notified by the Call Center (Tel: 094-7031888).

  3. The company reserves the right to extend the refund period beyond the stated timeframe in cases of force majeure.

  4. The company reserves the right to amend any terms and conditions without prior notice.


Shipping and Assembly

For online orders, such as bicycles, the product will be shipped pre-assembled up to 85% and packed in durable boxes.


Warranty for Bicycles

The warranty period is as follows:

  • Standard Frame: 1 year
  • Paintwork: 1 year
  • OEM Parts: Warranty conditions depend on the respective brand.
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888bike
Welcome to 888Bike – Your Trusted Cycling Partner Greetings, and thank you for visiting 888Bike, the premier online destination for bicycles and cycling accessories. Established in 2009, we are proud to serve cyclists across Thailand and beyond with two convenient branches: one in Chiang Rai (Phan District) and another in Chiang Mai. At 888Bike, we are committed to providing a comprehensive selection of high-quality bicycles and accessories from leading global brands. Whether you're a beginner, a casual rider, or a professional cyclist, we have everything you need to enhance your cycling experience. Our team of highly trained technicians are true bicycle experts, ready to assist you with professional advice and exceptional support. When you shop with us, you can do so with complete confidence. Simply give us a call at 094-7031888—we’re available anytime to help you find the perfect product for your needs. We take immense pride in delivering outstanding customer service and ensuring 100% satisfaction with every purchase. Your happiness is our top priority, and we stand by our commitment to making your shopping experience seamless and enjoyable. For our international customers, we are pleased to offer shipping to all ASEAN countries, making it even easier for you to access our premium products and services. 888 INTERTRADE PARTNERSHIP Discover the joy of cycling with 888Bike—where passion meets excellence.
Mobile number : 0947031888
E-mail : 888bike1@gmail.com
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