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The parts collection

Seatposts

Rigid and dropper seatposts by diameter and shape.

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In this category

7 parts
  • PNW Components Loam dropper post Gen 2, 30.9 mm × 150 mm
  • PNW Components Loam dropper post Gen 2, 31.6 mm × 150 mm
  • PNW Components Loam dropper post Gen 2, 34.9 mm × 150 mm
  • Thomson Elite seatpost 25.4 mm
  • Thomson Elite seatpost 27.2 mm
  • Thomson Elite seatpost 30.9 mm
  • Thomson Elite seatpost 31.6 mm

A seatpost must match the frame's diameter and section; a dropper also needs a cable route. Diameter is read to a tenth of a millimetre, and a D-shaped or proprietary section takes only its own post.

How do I know whether a part in this category fits my bike?
Every part page lists the standards it requires and its computed verdict on each bike in the fleet, with its confidence and sources. An "unknown" verdict means we do not have the measurement on file — not that it fits.

The shop · Atelier 700