Phaze Pivotal Seat Post comes in Black or Polished this post comes in at 100mm long so no need to cut this down run it fully slammed straight from the packet.

Weight 112

Phaze Pivotal Training post 27.2mm Diameter 500mm long, will fit any pivotal seat. Weight 378g

This is the long post at its maximum length 

Phaze Quick Release Seat Clamp to fit 31.8mm Frames with Oil Slick design finish.

Weight 40g