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Load image into Gallery viewer, Zipp Service Course Stem 70mm 31.8 Clamp +/-6 1 1/8 in Blast Black B2 Aluminum

SKU: STEM0542

Zipp Service Course Stem 70mm 31.8 Clamp +/-6 1 1/8 in Blast Black B2 Aluminum

Regular price $54.87
$65.00 Sale price $54.87 Regular price
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Description
Specifications

Upgrade your cycling cockpit with the Zipp Service Course Stem 70mm 31.8mm Clamp +/-6 in Blast Black. Crafted from high-quality forged AL-6061 aluminum, this premium stem combines durability, lightweight performance, and sleek aesthetics, making it ideal for both competitive riders and endurance enthusiasts. Its advanced engineering ensures maximum stiffness and reliability, translating to precise handling and confidence on every ride.

Designed with innovative features, the Zipp Service Course Stem boasts a machined and relieved faceplate, enhancing overall stiffness while simplifying installation. The stainless steel hardware with TORX heads allows for accurate torque application, reducing the risk of over-tightening and ensuring a secure fit. The laser-etched graphics on the bead-blast black finish provide a stylish, minimalist look that complements modern bicycles.

Key features include a flexible +/-6 angle for customized reach and handling, a 70mm length that offers the perfect balance between control and comfort, and a 31.8mm bar clamp diameter compatible with a wide range of handlebars. With a stack height of 41mm, this stem fits seamlessly into various bike frames, providing a precise, comfortable riding position.

Perfect for road, gravel, or mountain biking, the Zipp Service Course Stem enhances your bike's performance with its precision engineering and sleek aesthetics. Whether upgrading your racing setup or building a pro-level MTB, this stem offers exceptional stiffness, strength, and style-all at a competitive price point.

Enhance your ride with the Zipp Service Course Stem - built for performance, engineered for reliability, and styled for the discerning cyclist.

  • High-performance Zipp Service Course Stem engineered from durable forged AL-6061 aluminum for exceptional strength and stiffness, ensuring reliable control on every ride.
  • Features a newly designed faceplate and body construction, improving stiffness-to-weight ratio and simplifying installation for both casual and competitive cyclists.
  • Precision machined with stainless steel TORX hardware, providing accurate torque settings, easy adjustments, and a secure fit that withstands rigorous riding conditions.
  • Sleek Blast Black finish with laser-etched graphics offers a modern, aesthetic look that complements any cycling setup while resisting corrosion and wear.
  • Versatile +/-6 adjustable stem with 70mm length and 31.8mm clamp diameter, perfect for customizing your riding position for improved comfort and handling on road or gravel bikes.
Stem Angle (deg)+6
Stem Angle (deg)-6
Length70
Bar Clamp Diameter (mm)31.8
ColorBlast Black
Weight150
MaterialAluminum
Defined ColorBlack
Stack Height41
S.H.I.S. Stem Clamp Diameter28.6
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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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Customer Reviews

Based on 10 reviews
80%
(8)
20%
(2)
0%
(0)
0%
(0)
0%
(0)
A
Amazon Customer

Great stem - good quality light and small as I needed.

C
Customer

Great stem - good quality light and small as I needed.;

J
James Van Brocklyn

The stem is fine but the bolts it came with both the pinch bolts for securing to the steering tube and face plate bolts were crap. The heads stripped right away. I had to use the bolts from the stem I was replacing instead.

J
James Van Brocklyn

The stem is fine but the bolts it came with both the pinch bolts for securing to the steering tube and face plate bolts were crap. The heads stripped right away. I had to use the bolts from the stem I was replacing instead.;

S
Steve

I bought a second-hand bike that had a stem about 125mm long which was a ton of reach for me. I reduced that to 100mm with this stem. I might go a bit shorter to 80 or 90mm although this is already a huge improvement in comfort. Craftsmanship seems spot on although I wish the bolts were allen-keyed instead of Torx. My multi-tool doesn't have a Torx bit in it. Note that the steering head and handlebar diameter on this are both 28.6mm. My weird bike had a stem with 26mm at the handlebars and 28.6mm at the steering head so I needed to add shims to avoid replacing my handlebars.