PRO-LITE 
Aerobuster Carbon Fibre Seatpost
PL-SP-MC-AB-50
Length 320mm
Usually sells around £100. 

  • Manufactured with a high pressure forming system, the strength and rigidty of the seat posts is second to none.
  • The LEDT aerodynamic profile encourages a laminar flow with a minimum of resistance from the leading edge to the trailing edge
  • All Aerobuster seat posts have the best adjustability availability with the 360° rail mount
  • Aerobuster seat posts were one of the first systems to the market with an adjustable height Track or TT frame that didn't require cutting the frame
  • 260 grams

Thanks.