Description
Service Course SL StemZipp | Aluminum | 31.8mm Clamp | ±6° / ±17° | Matte Black
Zipp’s Service Course SL Stem is crafted from 7075 aluminum and features an optimized shape that’s both strong and lightweight, resulting in a best-in-class 1.85 grams per newton meter of stiffness. That means no-flex sprints and accelerations — every watt transfers directly to the bars.
To meet every rider’s fit needs, the stem is available in ±6° and ±17° angles in seven lengths from 70 to 130mm, plus 140mm and 150mm for the ±6° only. This stem is a favorite of Zipp ambassadors and professional athletes.
Material7075 aluminum — strong and lightweight constructionStiffnessBest-in-class 1.85 g/Nm — zero flex for sprinting and accelerationsAngles±6° and ±17° optionsLengths70, 80, 90, 100, 110, 120, 130mm (all angles); 140mm and 150mm (±6° only)Clamp diameter31.8mmSteerer1-1/8″FinishMatte Black with stealth decalsHardwareTitaniumFace plate bolts27mm horizontal spacing, 42mm vertical spacingWeight135g (based on ±6° 100mm)MaterialAl-7075Stem angle/rise±6°, ±17°Lengths70, 80, 90, 100, 110, 120, 130, 140, 150mmClamp diameter31.8mmSteerer clamp1-1/8″FinishMatte Black with stealth decalsHardwareTitaniumFace plate horizontal27mmFace plate vertical42mmWeight135g (±6° 100mm)InstallationApply grease to steerer tube and stem bolt threads. Torque stem clamp to manufacturer spec (typically 5-8 Nm). Face plate bolts should be tightened evenly in a crossing pattern.InspectionPeriodically check all bolts for tightness. Inspect for any cracks, deformation, or corrosion — especially after crashes or heavy loads.CompatibilityUse with 31.8mm clamp diameter handlebars and 1-1/8″ steerer tubes. Confirm stack height and reach fit for your frame geometry.StorageStore in a cool, dry place. Avoid hanging by the clamp area to prevent stress on the aluminum structure.
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