Zipp service course sl alloy seatpost seat posts
The secure low profile clamp allows the saddle to slide further back along the rails and with 0mm and 20mm setback options its 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 to further reduce weigh