Zipp Service Course Stem +/-25
Stems
Zipp Service Course Stem +/-25
Zipp Service Course Stem +/-25
Why Riders Choose the Zipp Service Course Stem +/-25
The Zipp Service Course Stem delivers the combination of strength, stiffness, and precise fit that riders expect from Zipp at a price that makes it accessible to any build. Read the overview
At a glance
- Material
- Aluminum
- Clamp diameter
- 31.8mm (Oversize)
- Lengths
- 75mm, 90mm
- Rise
- +/-25 degrees
2 in stock
Free shipping on US orders over $100.
- 30-day returns in new condition. Read the return policy.
- Price matching. Found it for less? See how it works.
Overview
Why Riders Choose the Zipp Service Course Stem +/-25
The Zipp Service Course Stem delivers the combination of strength, stiffness, and precise fit that riders expect from Zipp at a price that makes it accessible to any build. Its redesigned faceplate and body geometry improve stiffness and simplify bar installation over earlier iterations, resulting in a cleaner cockpit and more confidence under hard efforts. The +/-25° rise covers a wide fit range, making it ideal for riders who need significant bar height adjustment, are building a more upright endurance position, or are fitting a bike with lower stack height.
Available in 75mm and 90mm lengths to match your cockpit geometry, this stem pairs with any modern 31.8mm oversized handlebar and installs cleanly without fuss. The four-bolt faceplate with Torx T25 bolt heads secures the bar. For riders who want Zipp cockpit quality without the SL premium, the Service Course Stem is a straightforward, dependable upgrade that delivers well above its price.
All the specs
MPN 00.6518.031.004
- Material
- Aluminum
- Rise
- +/-25 degrees
- Clamp Diameter
- 31.8mm (Oversize)
- Lengths
- 75mm, 90mm
- Faceplate
- Four-bolt, Torx T25 bolt heads
From the Lab
Go deeper on the Zipp Service Course Stem +/-25
FAQ
Good questions
Get to know Zipp
There's more to Zipp than this one product. Our Zipp page has the full Zipp lineup we carry and more about the brand.
Visit the Zipp page →Who benefits most from a +/-25 degree stem rise?
Riders who need their bars significantly higher than their fork steerer height, those transitioning from flat to drop bar riding, or anyone setting up a more comfortable endurance or commuter position typically benefit from a high-rise stem.
How does this stem differ from the Service Course SL?
The standard Service Course is the more affordable option in the Zipp stem lineup. The SL version is made from 7075 aluminum with titanium hardware and has a 1.85 grams per Newton meter stiffness figure. Both use a 31.8mm four-bolt faceplate and deliver solid performance.
Can I flip this stem to use a negative rise?
Yes. The +/-25 designation means the stem can be flipped to run either a +25 degree rise (bars up) or -25 degree rise (bars down and further) to suit your fit needs.
Reviews
What riders say about the Lab
“Paul does a great job. He got my bike I bought from someone there in their town and had it packed and shipped to me in Austin, TX… It got here in perfect condition!”
“Fantastic store. It has everything you may want/need for cycling. Great team. Highly recommend to anyone looking for cycling related things and bike service.”
“I recently got back into biking and wanted to add some things onto my bike. They had most of what I was looking for in shop… I'm really happy to have found them.”
Questions about this one?
Not sure on size, compatibility, or whether this is the right one for you? Ask us. A real person here will answer.
Goes straight to the Lab with the product you were looking at attached. No newsletter signup.
