New Zipp Service Course Road Bike Aluminum Stem 120mm ±6 degrees.
The Service Course is where a race team calls home. The name connotes gear that is strong, light, reliable, aka race-ready. The Zipp Service Course (-6 degree) Stem is all those things.
Built out of 7075 aluminum via 3D forging and using stainless steel Torx bolts, it does the job with little pretense. And is pretty light at 130g for the 100mm length. Just tighten down the bolts and go. Years of worry-free riding are ahead.
Zipp has opted for Torx bolts for a few reasons. They won't easily strip, when a Torx bit is used in a torque wrench, they readings are more accurate, and both these things mean that the bolt heads are more durable. Over-torque an Allen-head bolt, and you could start to strip the interior walls of that bolt. Use a Torx instead and you won't face the same risk if you over-torque. And then, if you choose to use a torque wrench, the wrench's readings will be more accurate with the Torx bolt in there. The particular size, T25 was chosen because it is seeing increasing use with disc brakes, chain ring bolts, derailleurs, and shifters. It' also on more and more multi-tools and is easy to find in hardware stores. But, just to be safe, Zipp includes a tool with this stem.
The Zipp Service Course (-6 Degree) Stem is race gear.
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