31.6 Dropper Post
150 mm Drop
Manual Switch


Out of stock

SKU: DP316M-150 Categories: ,

This 31.6 dropper 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 150 mm. Because of this your bike seat height can be quickly raised or lowered. This allows you to maximise power and control when different seat heights are more effective.


  • 150 mm travel: This dropper post has a travel of 150 mm, which is a good amount of travel for most mountain biking applications.
  • Built in Manual lever: This dropper post is actuated with a manual lever which is built into the seat post.  This is a simple and reliable way to raise and lower the seatpost as no cabling is required.
  • 31.6 mm diameter: This dropper post has a 31.6 mm diameter, which is a common size for mountain bikes.
  • Durable construction: This dropper post is made from durable materials. These materials include a forged alloy body and a stainless steel shaft.
  • Weight: This dropper post weighs 380 grams, which is a good weight for a dropper post with this amount of travel.

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

The height lock is controlled by a built in lever. No cables required which makes installation quick and easy. 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 seat post 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

31.6 Dropper Post Specifications

  • Brand: EXAFORM.
  • Model Number: DP316M-150.
  • Model: Manual dropper with built in seat switch.
  • Type: Mechanical and spring.
  • Material: Aluminum alloy.
  • Travel distance: 0 to 150 mm.
  • Seat Post level controlled.
  • Post diameter 31.6mm.
  • Total length extended: 503 mm.
  • Minimum insertion length: 120 mm.
  • Weight 750 grams +/- 5%.

We also have a range of seatpost shims. These shims can be used to make this dropper post fit seatpost tubes wider than 31.6 mm. See below if your seatpost tube is wider than 31.6 mm.

Reasons to Use a Dropper Post:

  • Improved control: A dropper post allows you to lower your seat post. This gives you a lower centre of gravity and makes it easier to control your bike when going over rough terrain or descending.
  • Increased comfort: Dropper posts allow you to lower your seat post. Because of this it takes weight off your sit bones and makes it more comfortable to ride for extended periods of time.
  • Better weight distribution: A dropper post allows you to lower your seat post, which can help to improve weight distribution on your bike and make it easier to handle.
  • More versatility: A dropper post allows you to adjust your seat height quickly and easily. This can be helpful for riding in different terrain or situations.
  • Increased safety: A dropper post can help to prevent you from getting bucked off your bike when going over rough terrain or descending.

Dropper posts are becoming increasingly popular among mountain bikers, and for good reason. They offer a number of advantages that can make riding more enjoyable and safer. If you are considering upgrading your mountain bike, then a dropper post is a great option to consider.

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