Service Course B2 Stem
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Quantity
Get stability and style with the Zipp Service Course Stem—strong, adjustable, and built for control
Zipp’s Service Course Stem combines precision engineering with versatile design to enhance our ride. Constructed from 6061 aluminum and crafted with a 3D-forged shape, it provides top-tier stiffness and reduces flex, keeping steering responsive even during powerful accelerations. With ±6° and ±25° rise options, we can dial in a fit that maximizes comfort and efficiency.
Details
- Durable and stiff 6061 aluminum construction for reliable handling
- Available in ±6° and ±25° rise options to customize riding position
- 3D-forged design for improved stiffness-to-weight ratio
- Four-bolt faceplate with Torx T25 bolts for secure installation
- Item #ZIPZ057
- Material
- AI-6061
- Steer Tube Diameter
- 1-1/8in
- Length
- 60, 70, 75, 80, 90, 100, 105, 110, 120, 130mm
- Rise
- [60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm] 6°, [75mm, 90mm, 105mm, 120mm] 25°, [60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm] -6°, [75mm, 90mm, 105mm, 120mm] -25°
- Clamp Diameter
- 31.8mm
- Claimed Weight
- [100mm/-6 deg] 5.6oz (160g)
- Stack
- 40mm
- Bar Attachment
- 4-bolt
- Activity
- bike
- Includes
- T25 torx tool
- Manufacturer Warranty
- 2 years
Reviews
Q&A
What do you think about this product?
Overall Rating
5 based on 5 ratings
Review Summary
Fits True To Size
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.View
Selecting an option will reload the available reviews on the pageMarch 30, 2025
Good bang for the buck
Can’t beat it for the price. It’s reasonably light and feels more stiff than my older Ritchey WCS stem that it is replacing.
March 14, 2025
nice
- Familiarity:
- I've used it several times
- Size Bought:
- 70mm
This stem was needed to adjust handlebar reach. The package included a small torx wrench for tightening the clamp bolts. In silver it looks great and matches the color scheme of my bike. What else can I say?
August 8, 2024
good value
- Familiarity:
- I've used it several times
- Size Bought:
- 130 mm 6 deg
Well made, good screws. Stiff and light. Great selection of lengths and angles. All at a good price
May 22, 2024
It's ZIPP
- Familiarity:
- I returned this product before using it
- Size Bought:
- 100mm
Didn't realize that this stem doesn't fit the steerer tube on my bike, soooooo I had to return it which made me sad because it's a sexy bike stem and is really light.
January 12, 2022
Exactly what you think it is
- Familiarity:
- I've put it through the wringer
- Size Bought:
- Silver
- Height:
- 5' 10"
- Weight:
- 145
It is a stem. It connects a fork to bars. Sizing selection is above average. I purchased this over other brands specifically for the blasted silver finish, which I have to say is very attractive on a bike. I prefer it over polished metal as it is easier to clean, doesn't show grime as readily, and matches well wither other unpainted components.
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