Manual Dropper Post
30.9mm up to
150mm Travel


Availability: In stock

SKU: DP309M-150 Categories: ,

Manual dropper post 30.9 mm for quickly raising or lowering your bikes seat post. Extends from 0 up to 150 mm with the flick of a switch. The travel on these dropper seatposts can be set anywhere between 0 and 150mm.

To fit a 31.6 mm seatpost tube we have 31.6mm seatpost shims available.

With these dropper posts you can also adjust your seat angle using the built in swivel. To do this a hex key is required to make the adjustment.


Manual Dropper Post 30.9 swivel head

Controlled by a built in lever. No cables required. Watch the below video to see how easy it is to adjust the height of your bike’s seat with this seat dropper post.

To lower the height, sit on your bike seat and pull the level up. Once the desired height is reached release the lever and the seatpost will lock in place.

Raising the height is as easy as pull the level up again and releasing the pressure on the seat by standing up.

Manual Dropper Post Youtube video preview

Manual Dropper Post 30.9 Specifications

  • Brand: EXAFORM.
  • Model Number: DP309M-150.
  • Model: Manual dropper.
  • Type: Mechanical and spring.
  • Material: Aluminum alloy.
  • Travel distance: 0 to 150 mm.
  • Seat Post level controlled.
  • Post diameter 30.9mm.
  • Total length extended: 503 mm.
  • Minimum insert length: 120 mm.
  • Weight 750 grams +/- 5%.

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