Zoom SP442 Suspension Seatpost with 45mm of travel. Available in: Standard 31.6mm x 350mm or Tall 31.6mm x 400mm Please note, the suspension post will raise the minimum adjustable seat height. It may also sit lower with the suspension depressed, and may not be ideal for taller riders at the limit of the minimum insertion point for the seat post. (250lbs weight limit) Compatible Bikes: Portola Vorsa Prodigy v2 Roadster v3 (Roadster v3 seatpost diameter may vary, confirm compatibility prior to purchase) Also compatible with Cafe Cruiser, Core-5, LMT'D, LMT'D v2, Turris, Prodigy. Suspension Seatpost is not compatible with the Roadster v2, Gravel Roadster v2, CF Racer1 and Revv 1. *Suspension Seat Post will raise the minimum adjustable seat height.