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Inspiring your ride

The TranzX adjustable seatpost equips air pressure actuation–freely and easily adapting your seat position according to the terrain you meet. The MICRO adjustment offers quick and easy seat positioning, with reliable and robust technology.

Product details

  1. Remote actuated dropper post with Stealth internal routing and a clean look
  2. 31.6mm clamp size, 2-bolt head, available in 3 lengths
  3. Sizes: 360mm length/100mm drop, 400mm length/120mm drop, 426mm length/130mm drop
  4. Lever is not included - Bontrager Drop Line Universal Dropper Lever is recommended

More options


Size 31.6mm x 400mm x 120mm
Diameter 31.6mm
Length 400mm
Travel 120mm
Seatpost type Dropper posts
Offset 0mm
Rail compatibility Universal
Material Aluminum
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Weights are based off Trek pre-production products at time of publication. Weights may vary in final production.

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