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Ships within 48 hours · Estimated delivery Sep 3 - Sep 8
Rails: Proprietary Stainless Steel Alloy
The powerful
NEW FOR 2025: Our refined Zero Resistance Shoulder Panel with minimal seams allows you to maintain the perfect technique you've worked so hard to develop
Please refer to the usage chart to choose the right size cartridge for your tires and to know the pressure you can reach
Zipp Service Course SL Stem Prologo Rails: Proprietary Stainless Steel AlloyZipps Service Course SL Stem, crafted from 7075 aluminum, features a shape thats strong and lightweight, resulting in a best in class 1. 85 grams per newton meter of stiffness. That results in no flex sprints and accelerations. To meet every riders fit needs, the stem is available in 6 and 17 angles and seven lengths from 70 to 130mm as well as a 140 & 150mm lengths for the 6 stem only. This stem is a favorite of Zipp ambassadors and pro athletes.
