The New Elevn Aero Pivotal Seat Post is made exclusively for the Chase ACT 1.0, RSP 3.0 and Element Frames with Aero Seat Tube.
Offered in 2 sizes
25.4 x 250mm (Mini, Junior and Expert size frames)
27.2 x 250mm (Expert XL and above sized frames)
4 Color choices
Black, Polished, Red, and Blue.