Olympic Cycles

Zipp 404 Track Tubular Wheels 2010

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In the controlled environment of the velodrome, track racing calls for a unique set of features. Without the constraints of climbs, descents, corners, or potholes, our engineers were free to pursue stiffness and aerodynamics to the fullest.

As a result, the 404 track tubular wheelset is built on our 360 Track rims with an extra-stiff carbon laminate designed to respond instantly to the sharpest acceleration while absorbing the track's high-frequency low-amplitude vibrations. Add 28 front/rear spokes with a 2-Cross rear lacing pattern and our massively stiff track hubset, and the 404 Track tubular wheelset is ready for all the sprint you've got.

Technology:
• ABLC (Aerodynamic Boundary Layer Control): Advanced Boundary Layer Control (ABLC) refers to the patented and instantly recognizable dimpled pattern found on most of our rims. ABLC smoothes airflow across the rim's surface and is tailored to every model from the 202 to the Sub9 disc. 2009 sees the third-generation of ABLC, with up to 4 times more dimples than before.
• VCLC (Visco-Elastic Constrained Layer Control): Visco-Elastic Constrained Layer Control (VCLC) uses a vibration-absorbing material sandwiched between layers of rigid carbon laminate in the rim. When the wheel receives an impact from the road, much of the shock is absorbed by the VCLC system, delivering a 10% reduction in vibration.
• Carbon Bridge: Carbon Bridge uses a Kevlar thread in a co-axial helix stitch to bind sheets of carbon to each other in our tubular rims. Because Kevlar is 350% more impact resistant than carbon, it can disperse shock more evenly throughout the carbon laminate, making for a rim that is practically bulletproof. In particular, Carbon Bridge reduces the vulnerability of the rim's tire bed, the area most susceptible to damage from impact.

Specification:
• Total Weight 1730g
• Recommended Tire Width 21mm
• Max recommended rider weight 225lbs

Front Wheel
• Weight: 828g
• Rim Used :360 Track
• Hub Used: Track Hub Front
• Rim Depth: 58.0mm
• Aero Width: 24.00mm
• Spoke Count: 28
• Spoke Pattern: Radial
• Spoke Length: 234mm
• Road Adaptable: No
• Track Adaptable: Yes
• Dimpled Surface: Yes

Rear Wheel
• Weight: 902g
• Rim Used: 360 Track
• Hub Used: Track Hub Rear
• Rim Depth: 58.0mm
• Aero Width: 24.00mm
• Tire Bed Width: 17.98mm
• Spoke Count: 28
• Spoke Length: Non-Drive 248mm
• Spoke Pattern: Non-Drive 2 Cross
• Spoke Pattern: Drive 2 Cross
• Spoke Length: Drive 246mm
• Road Adaptable: No
• Track Adaptable: Yes
• Dimpled Surface: Yes


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