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Crank Brothers
Highline 3 Dropper Seatpost

5 out of 5 stars
5 Reviews
Current price: $126.50 - $169.99 Original price: $199.99
Up to 37% off

Style & Size:


Why We Like The Highline 3 Dropper Seatpost

Though we've had great luck with the Highline Dropper Post in the past, Crank Brothers made a number of improvements to this 3rd generation to boost performance and reliability even further. This Highline 3 is their lower-cost option, but it uses much of the same technology as the more expensive Highline 7. The difference lies in a simpler hydraulic cartridge that omits the internal floating piston, and a standard 2-bolt head rather than the quick-connect head found on the Highline 7.


  • A reliable dropper post for mountain or gravel bikes
  • Linear actuator offers a quicker return speed than before
  • Shorter insertion length fits a wider range of bikes
  • Self-contained hydraulic cartridge for smooth actuation
  • Premium Trelleborg seals keep out dust, dirt, and grime
  • Igus glide bearings eliminate side-to-side play
  • Enjoy simple and easy cable installation
  • Includes Jagwire cable and housing, remote sold separately
  • Item #CRNH00E
7075-T6 aluminum
27.2, 30.9, 31.6, 34.9mm
270 - 505mm depending on travel
60, 80, 100, 125, 150, 170mm
cable-actuated, internal hydraulic cartridge
cable, housing, grease, cable end
Claimed Weight
[30.9mm, 150mm travel] 1lb 3.9oz (565g)
Manufacturer Warranty
2 years

Overall Rating

5 based on 5 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 5 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


Selecting an option will reload the available reviews on the page
5 out of 5 stars

April 5, 2024

Works Great

I've used it several times

Exactly what I was looking for in an internal dropper post. Easy installation, smooth operation.


Originally reviewed on Backcountry.com

5 out of 5 stars

October 23, 2023

Amazing dropper post

I've put it through the wringer
Size Bought:
31.6 150mm
6' 1"

The actuation is fantastic and it comes with jagwire cable and cable housing which is very expensive stuff. It has everything you need to set up if you already have a lever and the actuation is very good.

tucker t
5 out of 5 stars

November 29, 2022

Works every time

I've put it through the wringer

2 years later and it’s still working flawlessly. I use this with the wolf tooth remote and have had it in my bike for the last 2 seasons with no issues or repair. It’s quick to come back up and doesn’t need your full body weight to lower. I’ll likely buy it again for once the dropper on my other bike fails.

Devin B

Originally reviewed on Backcountry.com

5 out of 5 stars

June 3, 2021

I really like it

I've used it several times

Fast action. Smooth action. Easy install.

Randy C
5 out of 5 stars

January 15, 2021

Excellent Dropper Post

I've used it once or twice and have initial impressions

First dropper post I have owned, and I only have initial impressions, but they are really positive. The install was easy and the dropper post looks great. I paired it with the crankbrothers lever and they both function well. The 125mm (~5") drop is just about right for me at my height (5'9"); I could maybe do with a 150mm. There is a very slight wobble in the post as mentioned before, but if I hadn't read the prior reviews, I may not have even noticed the wobble. The wobble seems to be in the actual post though, not where the seat is clamped to the post (that part is solid and I like how it adjusts). The action of the post is smooth and the return is sufficiently quick. As far as I can tell the components/material are high quality and feel strong/durable; I think this post will last me for quite some time. I'll try and update the post later if my impression changes. As of right now I am happy with my purchase. Even though I don't have experience with other dropper posts to compare too, I would buy the highline 3 again.

Zack C

Originally reviewed on Backcountry.com