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Zipp’s 303 Firecrest® Tubeless Disc-brake wheelset is designed for the real world… a world of imperfect conditions, road surfaces, and elements where the bottom line is simple. Efficiency = speed. It’s faster, lighter, and more capable over varied terrain—whether the surface is pavement in all its conditions or no pavement at all. Deeply rooted in Zipp’s drive to conquer the Spring Classics, the new 303 Firecrest is remade with a purpose-made approach for the demands of modern road bikes. When it comes to going fast on a bicycle, efficiency means reduced: Wind resistance, rolling resistance, rider fatigue, weight. The 303 Firecrest Tubeless Disc-brake was designed using real-world direct measurements (vs. primarily wind tunnel or computer simulation). The results were huge. Its rim is slightly more bulbous in design than its predecessor, with a 30mm outside width, a 25mm internal width, and a 40mm rim depth. The profile provides low drag and an improved transition between rim and tire, boosting aero efficiency on the road. The wide rim stance also features less tire deflection for reduced rolling resistance. The combination of the wider tire, increased tire volume, and lower tire pressure helps to reduce rider fatigue by smoothing out the ride over imperfect pavement and road conditions—the tire and wheel system absorbs the shaking, not the rider. At the center of the 303 Firecrest Tubeless Disc brake is a versatile and durable new hubset, the German-engineered ZR1 DB. This hubset features 66 points of engagement for quicker response. The 303 Firecrest Tubeless Disc-brake wheelset is for dedicated cyclists who aspire to the latest in technology. Its competitors… in races, against peers, or simply conquering personal limits. This is about becoming faster and matching your motivation to the most advanced technology.
ABLC (Aerodynamic Boundary Layer Control)
Advanced Boundary Layer Control (ABLC) refers to the patented and instantly recognizable dimpled pattern found on all of our carbon rims. ABLC smoothes airflow across the rim's surface and is tailored to every model from the 202 to the Super-9 Disc. The third-generation of ABLC has up to four times more dimples than before.
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.
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.
Zipp’s TSE Technology (Total System Efficiency) was developed by our engineers in the Nest Advanced Development Lab in Indy. This approach to carbon-wheel manufacturing means the 303 Firecrest’s precise rim layup results in greater all-around efficiency for greater speed through reduced: Wind resistance, rolling resistance, gravity (weight + durability), vibration losses
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.
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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