The Zipp Service Course 350mm Seatpost is lightweight and strong for security and has a precise fit at an affordable price. This 20mm Setback Service Course seatpost also is improved for easier tool access to the downward facing bolt for easy setup. This is a refined pro-level alloy seatpost made for every type of rider. 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.
The unique clamp design also features downward-facing bolt heads 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 6061 aluminum. The Service Course Seatpost is 350 mm in length.