This week Mavic unveiled the Cosmic CXR60 as the latest addition to the CXR Wheel-Tire System lineup that it first introduced a year ago with the Cosmic CXR80 wheels.
by Tom Anhalt, May 19, 2013
Zipp’s 101 wheelset looks like a training wheelset, but they perform like they were meant for racing. So, which are these all-aluminum but still toroidal wheels? It seems the best answer is both.
During the development of the Firecrest 404 wheels, Zipp engineers decided to take a slightly different approach than has typically been used in thinking about and designing the rim shape. So, what’s the bottom line? How well did the engineers do?
The common wisdom is that wheel mass, since it is rotating, counts "doubly bad" as compared to non-rotating mass. There’s a grain of truth to this common wisdom, but it doesn’t tell the entire story.
This, a companion to “What’s in a tire,” describes the difference between butyl and latex tubes, and also the calculus of tire pressure, and how to choose the right pressure for a race course.
Let it never be said that Slowtwitch doesn’t tell you where the rubber meets the road. We deconstruct the tire and explain what conspires to give you good flat protection and low rolling resistance.
If the frame of a bicycle represents the “heart” of a bicycle, it can be argued that wheels and tires represent the “soul”.