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Zipp Service Course SL 70mm Aluminum Road Bike Stem with 31.8mm Clamp, Matte Black
Reference Number: 3DX8EP
Upgrade your cycling experience with the Zipp Service Course SL Stem 70mm 31.8mm (+/-6 ) - a perfect blend of lightweight performance, precision engineering, and sleek style. Crafted from premium 7075 aluminum, this high-performance bike stem delivers exceptional strength and durability without adding unnecessary weight, making it ideal for competitive racing and demanding rides.
Materials & Engineering Excellence
Constructed from forged AL-7075 aluminum, the Zipp Service Course SL Stem offers superior stiffness-measuring just 1.85 grams per newton meter-ensuring maximum power transfer during sprints and acceleration. Its machined and relieved faceplate minimizes weight while maintaining structural integrity, enhancing your bike's responsiveness and handling.
Components & Innovative Features
Equipped with titanium hardware featuring TORX heads on all bolts, this stem provides precise torque adjustments for secure clamping and easy maintenance. The 31.8mm bar clamp diameter ensures compatibility with a wide range of handlebars, while the 28.6mm S.H.I.S. clamp diameter guarantees a tight, reliable fit. The 70mm length and adjustable +/-6 angle allow you to fine-tune your cockpit for optimal riding position and control.
Performance & Use Case
Designed for serious cyclists and weekend warriors alike, the Zipp Service Course SL Stem enhances stability and responsiveness across diverse terrains. Its lightweight profile (125g) reduces bike weight and improves handling, whether you're climbing, sprinting, or descending. The matte black finish not only adds a sleek, professional look but also resists scratches and corrosion.
Style & Versatility
With a clean design and subtle branding, this stem seamlessly integrates with any bike setup, from aero road bikes to endurance machines. Its versatile geometry and reliable engineering make it an essential upgrade for riders seeking precision fit and improved performance.
Elevate your bike's cockpit with the Zipp Service Course SL Stem - the premium choice for cyclists who demand excellence in materials, engineering, and style. Optimize your ride today with this high-performance, SEO-friendly component designed to drive results.
- Lightweight and durable forged AL-7075 aluminum construction delivers high stiffness and optimal power transfer, minimizing flex during sprints and climbs for enhanced performance.
- Designed with a machined and relieved faceplate, this Zipp Service Course SL Stem ensures precise handlebar fit and clean aesthetics, reducing weight without compromising strength.
- Equipped with titanium hardware featuring TORX heads, this stem offers effortless adjustment, superior torque integrity, and corrosion resistance for long-lasting reliability in all conditions.
- Perfect for road cycling and competitive racing, the 70mm length and versatile +/-6 angle provide customizable cockpit positioning, enhancing rider comfort and aerodynamics.
- Stylish matte black finish complements any bike setup, combining sleek aesthetics with high-performance engineering suitable for upgrading or replacing your existing stem.
| Item Specifications | |
|---|---|
| Stem Angle (deg) | +6 |
| Stem Angle (deg) | -6 |
| Length | 70 |
| Bar Clamp Diameter (mm) | 31.8 |
| Color | Matte Black |
| Weight | 125 |
| Material | Aluminum |
| Defined Color | Black |
| Stack Height | 41 |
| S.H.I.S. Stem Clamp Diameter | 28.6 |
| Material | AL7075 |
| Type | Road |
| Angle | +/- 6° |
| Finish | 41 |
| Bar Clamp | 31.8 |
| Fork Dia | 1-1/8` |
| Bar Clamp Diameter (mm) | 31.8mm |
| Defined Color | Black |
| eBay Steerer Tube Diameter | 1-1/8'' |
| Stem Angle (deg) | 6° |
| Face Plate Bolts | 4 |
| Length (mm) | 70mm |
| Material | Aluminum |
| Stack Height | 41 |
| Raw Product Weight Grams | 125g (100mm) |
Why 365 Cycles?
365 Cycles is an Authorized Zipp Dealer, and we offer the Full Zipp Warranty!
Fast Shipping!
Professional Customer Service- available 7 days a week
Check out our 200,000+ amazing reviews!
365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.
At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.
We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.
Shipping & Handling
Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.Please allow 1-2 business days for your order tracking to update.
- Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
- Friday afternoon -Sunday orders ship the following Monday
- Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.
Combined Shipping Discounts
To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.- Be sure you are using the US site: https://www.ebay.com
- Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
- Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
- Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
- You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.
Returns
365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.
Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.
Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.
If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!
Exchanges
If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.
