Zipp Service Course SL-OS (Black) (31.8mm) (120mm) (Adjustable) (1-1/4" Steerer)

Zipp Service Course SL-OS (Black) (31.8mm) (120mm) (Adjustable)
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Price: $131.99

Length/Reach | Stem Angle:

  • 120mm | Adjustable
  • 130mm | Adjustable

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This is the Zipp Service Course SL-OS Stem with an adjustable rise. The Service Course SL-OS was designed for 1-1/4" steerer tubes, but with the included shims you can use the stem on 1-1/8" steerer tubes. Your stem has to resist flexing during sprints and accelerations, clamp securely to the fork and handlebar, and support your weight over significant impacts. It’s a difficult job, but the Service Course SL-OS stem is still able to combine strength, stiffness and reliability at a weight of only 135 grams (100mm). The Service Course SL's 3D-forged, 7075 series aluminum body paired with titanium Torx bolts delivers exceptional strength-to-weight ratio while allowing for smooth lines to complement the aesthetics of modern frames.


  • Torx® head bolts that give precise torque readings while reducing the chance of getting stripped
  • Includes shims to us with an 1-1/8" steerer
  • Included shims allow you to adjust between 4, 6, or 8 degrees of drop or rise
  • Specifications:
    Bar Diameter: 31.8mm
    Steerer Diameter: 1-1/4" (31.75mm)
    Length/Reach: 70, 80, 90, 100, 110, 120, 130mm
    Stem Angle: 6° (Adjustable Shims Included)
    Stack Height: 41mm
    Material: Aluminum
    Color: Black

    Weight: 140g (100mm) 

This product was added to our catalog on March 7, 2018