Zipp 202 Firecrest Carbon Clincher Disc Brake 77/177 hub Wheelset
The 77/177D hubset combines with Zipp’s Firecrest technology to offer everything you look for in a disc-brake road wheel. The
Zipp 202 Firecrest Carbon Clincher Disc-brake delivers the enhanced modulation and stopping power of disc-braking, whether you stay on the road or venture into less tame territory. At 32mm deep utilizing Zipp’s revolutionary Firecrest design, this wheel has the aerodynamic resume of wheels twice its depth yet handles more predictably than a shallow box-section wheel.
To exceed the demands of gravel and adventure road riding, the 202 Firecrest Carbon Clincher Disc-brake wheelset also is laced using Sapim® brass nipples for increased stiffness and durability in all conditions.
About the 77/177D hubset:
The 202 Firecrest Carbon Clincher Disc-brake wheelset comes with a standard 10/11 speed driver body for SRAM®/Shimano® or for Campagnolo®, allowing you to run a wide range of cassettes. For those looking for a wider gear range, or tackling especially extreme terrain, a SRAM XD driver body for 177D (sold separately) is easily installed to allow for more cassette options. A 1.85mm spacer is included with the XD driver body and is required for use on the 177D hub. XD driver body compatible with 11-speed cassettes only.
The 77/177D hubset is surrounding by two most profound wheel innovations -- the Firecrest rim shape and Carbon Clincher technology. Firecrest rims have a near-constant width from brake track to spoke bed to improve aerodynamics and better control airflow. We used Computational Fluid Dynamics software analysis to maximize aerodynamics and minimize wind-produced torque, resulting in a 202 Firecrest Carbon Clincher Disc-brake wheelset that is faster and better handling than a classic road wheel. Our Firecrest rim shape improves stability by moving the wheel’s center of pressure to sit almost directly over the steering axis, where wind-produced steering torque has a minimal effect.
The 202 Firecrest Carbon Clincher Disc-brake wheelset comes with two decal options, the stealthy Beyond Black or the distinctive Classic White decals. Both decal options feature black anodized hubs, black spokes and silver nipples.
Each wheel includes 2 sets of Zipp thru-axle end caps, 1 Zipp skewers, 1 rolls of Zipp rim tape 700c x 20mm and 1 Zipp valve extenders. Rear wheel includes 1.85mm spacer for use with 10-speed cassettes.
With the new proprietary Firecrest rim shape in our 202, 303, 404 and 808 Firecrest wheels, Zipp wheels make a bigger difference in more ways than ever. Not only is Firecrest more aerodynamic than any other rim design, it improves handling in crosswinds and overall ride quality.
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.
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.
Electron Discharge Machining allows us to cut the materials for our rear hub drive internals after they’ve been hardened through heat treating, negating the warping and imprecision caused by the heat-treating process.
Zipp is the only company specifying Swiss made highly specialized ball bearing cartridges. Working with a family owned Swiss bearing manufacturer, Zipp is able to attain a superior level of bearing smoothness and long life. Zipp ball bearings are specified to 10 millionths of an inch tolerance, guaranteeing that they are at least 2.5 times rounder and better matched than most company’s “high precision” balls, and more than five times tighter than most “precision” balls.