All kinds of fast
Zipp’s 808 Firecrest® Tubeless Disc-wheels are pure engineering science. It has to be. To achieve speed with an 82mm rim depth is one thing, but to be fast while offering high crosswind stability, well, that requires serious attention to detail. Yet that’s just what the 808 Firecrest Disc brake accomplishes – speed with stability, and tubeless compatibility. That means you get all the aero benefits with having the ability to run lower tire pressure for increased cornering grip and compliance and reduced rolling resistance, without the risk of pinch flats. You also get the greater stopping power of disc brakes. This wheelset is infused with technologies developed in Zipp’s Indianapolis advanced development lab. Zipp’s ABLC™ Sawtooth™ Technology uses a complex dimpling pattern to improve aero efficiency. At the center of the 808 Firecrest Tubeless Disc-brake is a versatile and durable new hubset, the German-engineered ZR1 DB. Zipp’s new wheel cosmetics make this wheelset a perfect pairing of speed and style.
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.
ZR1 DB hub
ZR1 DB hub is engineered in Germany with better seal design for improved durability and quicker response with 66 points of engagement.
Included in delivery: rear wheel, 12mm endcaps, Centerlock lockring
Weight supplement: manufacturer information
|Product Name:||ZIPP 808 Firecrest Carbon Rear Wheel - Clincher - Centerlock - 12x142mm - SRAM XDR - black|
|usage bikesport:||Road Bike, Competition, Triathlon|
|hubs:||ZIPP ZR1 Disc|
|shifting system:||11-speed, 12-speed|
|wheel size:||28" (29") (622mm)|
|axle standard:||12x142mm (RW)|
|Wheel / Hub version:||Rear Wheel, Rear Wheel > 900g, Standard Wheel|
|Freehub Body:||XDR (SRAM 12s Road)|
|tire type:||Wire Bead Tire, Folding Tire, Tubeless Ready|
|fitting tire dimensions:||23-28mm|
|inner profile width:||19mm|
|rim profile height:||82mm|
|nipples:||Sapim Secure Lock|
|manufacturer item code:||00.1918.538.001|
|Number of Spoke Holes:||24|