Crank Brothers Highline 3 Dropper Post

Crank Brothers Highline 3 Dropper Post
  • Travel: 100mm
  • Travel: 125mm
  • Travel: 150mm
  • Travel: 170mm
Please select options
This item is only available through our retail locations. Please visit your nearest Trek Bicycle Store to purchase. Some items listed as "In Stock" may not be immediately available in our store. Please call for verification.


The all-new Highline delivers infinite adjustment, smooth feel, and easy installation for any bike.

- Shorter insertion length to fit more bikes
- Premium Trelleborg sealing
- Exclusive Igus LL-glide bearings and keys
- Jagwire cable and housing
- Self-contained hydraulic cartridge delivers industry-leading quality and reliability
- Internal routing
- Quick connect mechanism for ease of cable installation
- Linear actuator for quick return speed
- 2-bolt standard head
- Remote sold separately

Dropper posts

A dropper seatpost allows you to quickly lower and raise your seat to give you an ideal riding position. Dropping your seat creates a lower center of gravity for better control and maneuverability on steep descents, while raising it puts you at normal riding height for efficient pedaling.

Construction can include either hydraulic- or cable-actuated systems and the post’s travel can either be infinitely adjustable or stopped at set intervals, depending on the model.

Dropper seatposts come in standard lengths and diameters and vary by the amount of travel.

Part Numbers

Option UPC MPN Store SKU
Black / 30.9mm / 370mm / 0mm / 100mm 641300163707 16370 CRA50700563K
Black / 30.9mm / 421mm / 0mm / 125mm 641300163721 16372 CRA50210153K
Black / 30.9mm / 469mm / 0mm / 150mm 641300163745 16374 CRA50878805K
Black / 30.9mm / 505mm / 0mm / 170mm 641300163769 16376 CRA50134337K
Black / 31.6mm / 421mm / 0mm / 125mm 641300163738 16373 CRA50696139K
Black / 31.6mm / 469mm / 0mm / 150mm 641300163752 16375 CRA50391254K
Black / 31.6mm / 505mm / 0mm / 170mm 641300163776 16377 CRA5044903K