Zipp Claims Highest Stiffness-to-Weight Ratio
FRIEDRICHSHAFEN, Germany – The new SL Sprint stem was designed to be the best-performing carbon stem. According to Zipp it does just that with the highest stiffness-to-weight ratio of any stem currently on the market.
The SL Spring (see photo) was designed using SRAM’s Exogram technology, the same used in SRAM Red cranks. It is made of unidirectional carbon, weights 165 grams at 100cm and has a diameter of 31.8mm.
Zipp also revised its Service Course Bar Line. The bars are designed using feedback from top fitters and pro cyclists, including riders on the Omega Pharma – Quick-Step Cycling Team. New for 2014, each handlebar has its own drop shape to meet the performance and fit needs of every rider.
Each handlebar’s numeric name is derived from the bar’s “reach,” which is the horizontal distance from the center of the top of the bar (or center of stem clamp of bar) to the center of the brake perch. This crucial fit metric influences a rider’s overall position as well as his or her access to control levers.
Zipp also refined each bar’s ramp angle for a more natural transition from the top of the bar to the brake hoods, which minimizes the need for up-rotated bars. The result of all this innovation is a better fit and ergonomics.