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Zipp Service Course SL Seatpost (20) - Black/Silver 31.6mm



32% off

Seatpost Diameter


The pro-proven Zipp Service Course SL Seatpost is better and lighter. The redesigned post, weighing just 235 grams for 20-mm setback, is lighter while providing security and a precise fit. It's also designed for easier tool access to the downward facing bolt for easy setup. Better fit means better performance. If your saddle is out of position, you'll waste energy with every pedal stroke. The secure, low-profile clamp allows the saddle to slide farther back along the rails, and with 0 mm and 20 mm setback options, it's possible for nearly any rider to achieve the perfect fit. This unique clamp design also features downward-facing bolt heads that allow micro-adjustment of the saddle even after it is mounted. For high strength, low weight, and efficient use of every gram, the shaft and head are not bonded but are 3D-forged from a single piece of 7075 aluminum. Titanium bolts keep the weight in check.

Material: 7075 Aluminum
Length: 330mm
Diameter: 27.2 or 31.6mm
Weight: 235 grams

Model Number
Item Code
Zipp Service Course SL Seatpost (20) -  Black/Silver 31.6mm