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Load image into Gallery viewer, Zipp Service Course SL Stem 140mm 31.8 Clamp +/-6 1 1/8 in Matte Blk B2 Aluminum
Load image into Gallery viewer, Zipp Service Course SL Stem 140mm 31.8 Clamp +/-6 1 1/8 in Matte Blk B2 Aluminum
Load image into Gallery viewer, Zipp Service Course SL Stem 140mm 31.8 Clamp +/-6 1 1/8 in Matte Blk B2 Aluminum

SKU: STEM0510

Zipp Service Course SL 140mm Alloy Road Bike Stem - 7075 Aluminum Lightweight, No-Flex Performance, Machined Faceplate, Titanium Hardware, +/-6 Adjustable, 31.8mm Clamp, Matte Black Carbon-Style Design

Regular price $105.56
$130.00 Sale price $105.56 Regular price
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Description
Specifications

Upgrade your cycling setup with the Zipp Service Course SL Stem - a precision-engineered, lightweight handlebar stem designed for competitive riders and serious enthusiasts alike. Crafted from high-grade forged AL-7075 aluminum, this 140mm stem delivers exceptional stiffness (1.85 Nm per Newton meter) to ensure no-flex performance during sprints, climbs, and fast-paced maneuvers.

Materials & Construction:

Built with premium forged 7075 aluminum, the Zipp Service Course SL Stem combines durability and lightweight performance. Machined and relieved faceplates reduce weight without compromising strength, making it an ideal choice for optimize power transfer and responsive handling.

Performance & Engineering:

Engineered for strength-to-weight ratio excellence, this stem offers a +6 /-6 adjustable angle to fine-tune your rider position for optimal aerodynamics or comfort. The 41mm stack height and 28.6mm S.H.I.S. clamp diameter provide a secure, vibration-dampening connection to your handlebars.

Components & Technology:

Equipped with titanium hardware featuring TORX heads, the Zipp Service Course SL Stem allows for precise torque adjustments and reliable fastening. Its machined faceplate enhances clamping surface integrity, reducing stress on your handlebars and ensuring long-lasting performance.

Style & Use Case:

Finished in sleek matte black, this stem seamlessly blends style with function, perfect for road racing, time trials, and high-performance cycling disciplines. Its versatile +6/-6 design offers aggressive positioning options or a more relaxed riding angle depending on your preferences.

Innovative Features:

- Forged AL-7075 construction for superior strength and lightweight performance

- Machined and relieved faceplate for weight savings and precise clamping

- Titanium hardware with TORX heads for easy adjustments and long-term durability

- Adjustable angle (+6 /-6 ) for customized rider positioning

Enhance your bike's handling and power transfer with the Zipp Service Course SL Stem - the ultimate choice for riders seeking engineered precision, minimal weight, and lasting performance. Perfect for maximizing your cycling efficiency on the road or time trial courses.

  • Enhanced performance with forged AL-7075 aluminum construction for a lightweight yet durable stem that reduces weight without compromising strength.
  • Advanced stiffness-to-weight ratio delivering 1.85 N/mm of rigidity, ensuring no-flex sprint power transfers and precise handling during aggressive riding and technical climbs.
  • Features machined and relieved faceplate design paired with titanium hardware utilizing TORX heads for superior torque accuracy, effortless adjustments, and long-lasting durability.
  • Designed with a versatile +/-6-degree angle and 140mm length, ideal for customizing rider positioning and optimizing aerodynamics for road, gravel, or endurance cycling.
  • Sleek matte black finish with 31.8mm clamp diameter provides a stylish, corrosion-resistant aesthetic that complements a range of bike frames while ensuring secure component fit.
Stem Angle (deg)+6
Stem Angle (deg)-6
Length140
Bar Clamp Diameter (mm)31.8
ColorMatte Black
Weight123
MaterialAluminum
Defined ColorBlack
Stack Height41
S.H.I.S. Stem Clamp Diameter28.6
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We pride ourselves on our ability to ship and deliver your gear with excessive speed! We ship from 22 locations throughout the United States and most orders will arrive in 3 days or less with Free Shipping on orders over $75!

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Most orders placed during the workweek before 1:00 PM Eastern time ship the same day, but during peak/holiday season or depending on inventory location handling time can take up to 48 hours. If you have questions regarding shipping estimates, don't hesitate to get in touch with us before placing the order. There is a direct signature requirement for all orders over $500.

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365 Cycles puts the customer above everything. Our number one goal is your satisfaction. When you press the shift lever you want the gears to shift, and when you buy bicycle parts, you want the bicycle parts to arrive on time in new condition. With over 60,000 products and 22 warehouse locations throughout the country, we have the parts you need and they are coming in hot!

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If there is ever an issue with an order we will work at warp speed to fix our mistake and make sure you never go a day without a bicycle! If you are not receiving the quality of service you need from one of our exceptionally qualified bicycle experts, tell them Ben Berman told you to tell them "Customer Loyalty" and then name your terms.

Our team is waiting to help you 7 days a week and they are more qualified to help than I am but if you ever feel like you're not getting the service you need I’m personally asking you to email me at ben@365cycles.com with "CUSTOMER LOYALTY" in the title and I will personally handle your order.

Over the years we have served millions of satisfied customers and continue to serve many of them today. With your feedback, we are confident we can take this lifelong journey together and build a friendship that goes beyond parts and accessories.

“If you want to go fast, go alone, if you want to go far, go together.” -Someone Smart

Ben Berman Founder & CEO of 365 Cycles


Company Core Values: 

These were established by the members of our team and we use them every week to call out team members who have shined in one of these areas. Feel free to let us know at info@365cycles.com if someone you worked with has gone above and beyond in one of these areas. 

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If it is to be, it’s up to me" You are personally responsible for controlling the outcome.

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If you want to go fast, go alone, if you want to go far, go together. Get your team involved and become stronger together.

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Customer Reviews

Based on 3 reviews
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Nonplussed

Happy customer. Needed this very specific stem in Singapore. No bike store had it. Amazon.sg and ZIPP worked perfectly to export it from the US and get it to me in perfect condition in good time.;

T
TS

need a 100mm -17 degree stem not able to get it correct size with Tarmac SL7 proprietary stem. matt finished an update from last gen

T
TS

need a 100mm -17 degree stem not able to get it correct size with Tarmac SL7 proprietary stem. matt finished an update from last gen;