Zipp 303 Firecrest Tubular Black, 700c Rear Sram 11-Speed

Zipp 303 Firecrest Tubular Black, 700c Rear Sram 11-Speed Description

What better to test a wheel"s strength and versatility than Flanders or Roubaix? Well, the Zipp 303 has won them both already. And not being one to rest on its laurels, Zipp integrated the 303 with its latest Firecrest technology. Now, with the 303 Firecrest Tubular, you get Zipp"s most stable, evenly performing wheel in its history. Lighter, faster, and stronger, the age of Firecrest is here to make Zipp"s fastest wheels even faster. The 303 is one Zipp"s most ambitious rim shapes. It maintains a rim depth of 45mm and a maximum width of 28.5mm in the front and rear -- nearly a whole millimeter wider than the 404 Firecrest. The Zipp 88/188 hubs" bearing stance has been widened by 7.5mm, and the rim"s body shape has been canted out by two percent. Zipp found that the design creates a more stable structure, and offers greater vertical and lateral compliance with increased control, comfort, and rigidity. While the 303 benefits from these welcomed additions, to achieve the Zipp-standard of strength and rigidity, the 303 utilizes uni-directional fibers to handle the tensile and comprehensive loading within the rim, and woven fibers in the spoke-hole areas. A woven silica-ceramic fabric and a woven carbon fabric encapsulate the braking and tire-mounting surfaces. The combination of fiber patterns creates a high stiffness-to-weight ratio without stacking up the grams. A number of Zipp technologies went into making the 303 Firecrest one of the most versatile wheels in the Zipp arsenal. First, the Multi-Material Co-Molding process permanently fuses a sub-200-gram aluminum hoop to a dimpled carbon structure that acts as a leaf spring for road vibration and impact. Spokes laced directly to the carbon body give you the benefit of a carbon feel and aluminum braking. Next, visco-elastic material is inserted between carbon laminate in the rim to reduce road vibration by ten percent.

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