Zipp Service Course Stem

Color: Black
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Delivering all you look for in a stem—strength, stiffness, reliability and a precise fit—the Zipp Service Course stem offers a distinctive look to complement the aesthetics of modern frames.


  • 3D-forged from 6061 aluminum, the stem resists flexing during sprints and accelerations
  • Distinctive design and graphics complement the aesthetics of modern frames
  • Faceplate and body design provides greater stiffness-to-weight ratio and easier installation
  • Secures with a 4-bolt faceplate using Torx® T25 bolt heads
  • Steel hardware
  • Bead-blast black finish
  • Backed by a Zipp lifetime warranty


View all Zipp Bike Stems

Technical Specs

Best Use

Road Cycling

Steer Tube Diameter (in)

1-1/8 inches

Bar Clamp Diameter

31.8 millimeters

Stem Rise

+/-6 degrees


31.8 MM x 70 MM x +/-6 Degree: 70 millimeters

31.8 MM x 80MM x +/-6 Degree: 80 millimeters

31.8 MM x 90 MM x +/-6 Degree: 90 millimeters

31.8 MM x 100 MM x +/-6 Degree: 100 millimeters

31.8 MM x 120 MM x +/-6 Degree: 120 millimeters

31.8 MM X 90 MM X +/- 25 Dgree: 90 millimeters

31.8 MM X 105 MM X +/-25 Dgree: 105 millimeters


6061 aluminum


152 grams

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