With its advanced material layup and aerodynamically efficient & stable shape, the Zipp 303 Firecrest Carbon Clincher Tubeless Disc front wheel cuts through the air like a knife and remains cool, calm & collected in a crosswind.
If the Viscoelastic Constrained Layer Control rim construction sounds complicated, it’s because it is. In essence, the layers of rigid carbon fibre laminate have a vibration-absorbing material sandwiched between them, reducing road vibration by as much as 10% over a standard carbon construction.
The Firecrest aerodynamic rim profile has been thoroughly honed and perfected in the wind tunnel to do more than just reduce high speed drag. Compared to other rims of similar (and sometimes shallower) depths, the Firecrest shape substantially reduces the effect of crosswinds on your bike, giving you the stability and confidence to keep the hammer down when your competitors must relent.
Having been designed from the outset to run as a tubeless rim, the Zipp 303 Carbon Clincher Tubeless disc wheels have ridges on the internal rim bed which hook & lock into the tyre bead, making it sure it stays right where it’s supposed to, even under lower pressures. Zipp also advise that their 303 carbon clincher tubeless wheels can also be safely run with tubes in place if you choose.
The 77/177D hubset on the Zipp 303 carbon clincher tubeless disc wheels are an excellent example of Zipp’s advanced engineering design. The star-flanged straight-pull hub shell evenly distributes spoke tension forces, making sure that the bearing bores stay round and don’t change shape under the stress. This minute attention to detail is just one of the reasons Zipp’s wheelsets have a competitive edge. They’re ultra-reliable, built with incredible precision, and designed for the ultimate performance.
Slice through the wind without being guided by it, with the Zipp 303 Firecrest Clincher Tubeless disc front wheel.
About the 77/177D hubset:
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