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Zipp’s 303 Firecrest Tubeless rim-brake wheelset is an all-around wheelset for a new era of road riding. It’s rich in heritage yet loaded with innovations. It’s as adept in the mountains as it is on rolling hills, windswept farm lanes, or ferocious field sprints. At Zipp, we never rest on laurels. This wheelset features a 19mm internal width and is tubeless ready. That means you can run lower tire pressure for greater cornering grip and compliance with reduced rolling resistance without the risk the pinch flats. When it comes to pure speed, the 303 Firecrest Tubeless packs a serious punch. It’s lightweight with ABLC™ Sawtooth™ Technology, a complex dimpling pattern first developed for our top-level NSW wheel lineup. This technology helps to achieve the optimization of low aerodynamic drag and crosswind stability, which we call AeroBalance™. Zipp’s ShowStopper™ textured braking surface delivers unrivaled rim braking performance in wet or dry conditions. At the center of the 303 Firecrest Tubeless rim-brake is a new versatile and durable hubset, the German-engineered ZR1.
Our superior Carbon Clincher technology is the culmination of two years of intensive prototyping and testing. We worked with our composites supplier to develop an exclusive heat-resistant resin based on the materials used in motorsports brake systems. This proprietary technology improves heat management so substantially that all Zipp Carbon Clinchers pass stringent CEN safety standards.
With the industry-changing Firecrest rim shape, Zipp wheels fulfill our missing of making you faster at our most popular rim depths. Not only is Firecrest more aerodynamic than any other rim design, it improves handling in crosswinds and overall ride quality. Firecrest is the first aero profile that effectively controls airflow around the back half of the wheel. Its durability is durable enough for the Spring Classics as well as years of training and racing.
Our industry leading silicon carbide Showstopper brake track continues to evolve and improve, providing unmatched stopping power and modulation regardless of weather conditions or the length of the descent.
Zipp’s Sawtooth dimple design consists of 12 nodes that are specifically clocked to start aerodynamic shearing at a rate of 50hz at a rider speed of 20mph. Sawtooth accomplishes this by inducing small sheet vortices that shed at a low magnitude, but at a higher natural frequency, thus decreasing the laminar bubble effect on the aerodynamically shielded side of the rim’s profile to further reduce high yaw drag and improve crosswind stability.
Zipp’s sole mission is to help you go faster. That's why our wheels are race-ready before they're camera-ready. For years, Zipp has used a combination of testing methods – wind tunnel, CFD computer simulations, pro athlete evaluations, on-road testing, and the RollingRoad ride simulator – to refine aero performance to new levels of excellence. Over the decades of innovation, our engineers have learned to look beyond just focusing on simply reducing aero drag. Instead, the goal now is to reduce aero drag while also minimizing the effects of crosswinds on handling. This optimizing of aero efficiency and crosswind stability became known internally at Zipp as AeroBalance. The approach began with Firecrest technology and has been advanced with the introduction of the NSW lineup, especially with the Sawtooth technology found in the 454 and 858 NSW. Sawtooth accomplishes this with a series of patented fin-shaped Hyperfoil nodes along the inner diameter of the rim that work together with our new HexFin ABLC dimples for improved airflow.
Approximately 5-7 days total
1-2 business days (Wheels sold without accessories or installation)
1-2 business days
All orders are processed within 1-2 business days.
Orders placed after 5pm Friday and on weekends will be processed the following Monday. Orders placed on holidays will be processed the following business day.
Once your order has been processed, please allow for 2-3 business days for it to be shipped.
Please note we do not currently ship to P.O. boxes or APO/FPO Addresses.
Once your order has shipped you will receive a shipment confirmation and order tracking email.
We want you to be beyond happy with your purchase from My Bike Shop! So most bikes, wheels and gear we sell are backed by our 30-Day Satisfaction Guarantee. We're able to offer this because every bike must meet our rigorous and meticulous 72-Point Inspection before being sold and shipped, and all wheels and gear must meet specific certification standards as well prior to shipping. If for any reason you're not satisfied with your item(s), just let us know and we'll make it right or take it back. It's that simple. We aim to please, but if the item(s) and our service do not meet your expectations or work out otherwise, just ship it back our way for a refund (certain fees may apply).
All orders are covered by the MBS 30-Day satisfaction Guarantee, but in some cases there are re-stocking fees associated with the cancellation or return of an order. Please review the following guidelines as it relates to your order:
Canceled orders of any* item prior to shipping will be refunded 100%.
Items that have been modified in any way (including decal removal) cannot be returned or refunded.
Wheels that have been damaged in any way, or are otherwise now unrideable cannot be returned for a refund, but must go through warranty or crash replacement.
Helmets that have had tags or safety stickers removed, or have been ridden in are not eligible for return.
My Bike Shop cannot be held liable for warranty claims or labor charges carried out by any other business.
Orders for return that have shipped to the customer, are within the 30-Day window and have been installed or used otherwise, can be returned for a refund minus a 15% restocking fee once received back in the MBS warehouse. Return shipping is the responsibility of the customer. MBS will review item(s) once received to verify condition prior to issuing the refund.
Wheel accessory installation fees are non-refundable.
Items that have been damaged from use during the 30 day period are not eligible for return. This includes, but is not limited to: Scratched or dented wheels, scratched or gouged items of any kind, items that have been damaged by improper installation, items with damaged bolts.
Electronics (including, but not limited to activity monitors, GPS-enabled devices, bike trainers, emergency-communication devices, and cameras) that have had their sealing stickers broken, have been removed from the box, turned on, had the screen protector removed (if applicable), used, or otherwise set up for any length of time will incur a 15% restocking fee.
*Soft goods with tags removed, or that have been worn are not eligible for return, and are exempt from this policy.
Custom ordered wheels, small parts or soft goods cancelled before receipt of the item(s), are charged a 10% restocking fee. For custom orders of wheels, small parts or soft goods returned unused within the 30-Day Guarantee window, we charge a 15% restocking fee and any shipping fees are at the expense of the customer.
As part of our commitment to 100% customer service satisfaction, you receive a no questions asked refund for most unused non-custom bike, wheels and gear purchased directly from My Bike Shop. You don't even have to call.
Once you've purchased with us, you have until you receive a tracking code to cancel. Once the item is shipped, you're covered by a 30-Day Guarantee. For custom ordered wheels, small parts or soft goods cancelled before receipt of the item(s), we charge a 10% restocking fee.
For custom orders of wheels, small parts or soft goods returned unused within the 30-Day Guarantee window, we charge a 15% restocking fee and any shipping fees are at the expense of the customer. Custom ordered complete bike builds completed by MBS require a 15% restocking fee if cancelled prior to shipping or 20% if returned unused within the 30-Day Guarantee window.
Warranties are at the discretion of the manufacturer.
The buyer is responsible for all return shipping costs.
My Bike Shop cannot be held liable for warranty claims or labor charges carried out by any other business.
If a replacement item is purchased by customer for immediate shipping, the transactions will be deemed as unrelated, and the following steps will still have to be followed for the item in question.
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