Tharsis XC Seatpost

The PRO Tharsis XC Seatpost is a lightweight but robust carbon seatpost, designed for cross-country and endurance mountain biking.
Designed to provide you with a better sports’ bicycle experience the PRO Tharsis XC Seatpost is a cross-country and endurance seatpost for the weight conscious mountain bike racers. Though its UD carbon construction ensures it is lightweight it remains robust enough for the rigors of World Cup XC racing. It makes use of PRO’s innovative 1-bold clamping system, which provides a wide range of saddle angle adjustments, and boasts Shimano Di2 battery integration. The Tharsis XC Seatpost features a matte carbon finish, measures 400-millimetres in length and is available in 27.2-, 30.9- and 31.6-millimetre diameter versions, with a 0- or 20-millimetre offset.
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  • Lightweight but robust carbon mountain bike seatpost
  • UD carbon construction
  • Innovative 1-bolt clamping system which allows for a wide range of saddle angle adjustments
  • Compatible with Shimano Di2 battery integration
  • Matte carbon finish
  • Length: 400mm
  • Diameters: 27.2, 30.9 and 31.6mm
  • Offset: 0 and 20mm
  • Weight: from 199g
View technical details >


  • Partnumber
  • Color
  • Diameter
  • Length
  • Material
  • Series
  • PRSP0107
  • Black
  • 27.2
  • 400
  • Carbon
  • Tharsis
  • PRSP0108
  • Black
  • 30.9
  • 400
  • Carbon
  • Tharsis
  • PRSP0109
  • Black
  • 31.6
  • 400
  • Carbon
  • Tharsis

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