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SKU: ST3644

Crankbrothers Highline 3 Dropper Seatpost 31.6mm, 125mm Travel - Hydraulic Alloy Remote-Actuated, Internal Routing, Black, Ultra-Responsive Performance & Easy Installation

Regular price $185.74
$222.95 Sale price $185.74 Regular price
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Description
Specifications

Upgrade your mountain bike or trail bike with the Crankbrothers Highline 3 Dropper Seatpost - the ultimate blend of engineering excellence, innovative features, and sleek style. Designed for riders who demand precise height adjustability, reliable performance, and seamless compatibility, this 31.6mm dropper post offers a 125mm travel optimized for aggressive riding, XC racing, or all-mountain adventures.

Materials & Construction:

Constructed from lightweight yet durable alloy, the Crankbrothers Highline 3 ensures long-lasting performance under demanding conditions. Its premium Trelleborg sealing system guarantees dust and water ingress protection, while the self-contained hydraulic cartridge provides smooth, stable actuation and industry-leading reliability.

Performance & Engineering:

Equipped with a linear actuator, the Highline 3 delivers quick return speed for rapid height adjustments on the fly. The internally routed cable system reduces clutter and protects the cable, enhancing durability and aesthetics. Thanks to exclusive Igus LL-glide bearings and keys, this dropper post features ultra-smooth operation with minimal maintenance. Its shorter insertion length allows compatibility with a wider range of bike frames, making installation straightforward and efficient.

Components & Technology:

The 2-bolt standard head system ensures secure saddle clamping and easy saddle angle adjustments. The quick connect mechanism simplifies cable installation and maintenance, while the cable and housing from Jagwire further enhance performance with smooth, reliable actuation. The remote (sold separately) can be mounted on the left or right side, providing customizable setup options for ergonomic control.

Style & Use Case:

Finished in sleek black, the Highline 3 complements any bike build with a minimalist aesthetic. Perfect for mountain biking, XC racing, enduro, or trail riding, this dropper seatpost enhances bike handling and confidence by allowing effortless saddle height adjustments on descents, climbs, or technical features.

Innovative & Differentiating Features:

- Industry-leading self-contained hydraulic cartridge for maximum reliability

- Shorter insertion length fits more frame geometries and sizes

- Exclusive Igus LL-glide bearings for frictionless operation

- Built-in quick connect for hassle-free cable setup and maintenance

- Compatible with internal routing for clean, streamlined builds

- Lightweight alloy construction with a 545g weight for performance-conscious riders

Optimize your ride with the Crankbrothers Highline 3 Dropper Seatpost - engineered for smooth climbing, precise descent control, and unbeatable durability. Whether tackling rugged trails or cross-country terrain, this seatpost is your reliable partner for elevating your cycling performance.

  • Elevate your biking experience with the Crankbrothers Highline 3 Dropper Seatpost, featuring a durable alloy construction combined with advanced engineering for reliable performance on every ride.
  • This dropper seatpost offers infinite height adjustment, enabling precise saddle positioning for optimal comfort and control across varied terrain and riding styles.
  • Designed with a self-contained hydraulic cartridge and premium Trelleborg sealing, the Highline 3 delivers smooth, consistent actuation and industry-leading reliability in any riding condition.
  • Equipped with an innovative linear actuator and quick connect cable mechanism, this seatpost provides rapid, effortless height changes and easy installation with internal cable routing for a sleek, integrated look.
  • Built for versatility and compatibility, the 31.6mm diameter with a 125mm travel length fits most modern mountain bikes, making it ideal for trail, enduro, and all-mountain riding adventures.
Length421
ColorBlack
Weight545
Travel (mm)125
ActuationCable Remote
Remote PositionLeft
Remote PositionRight
Diameter31.6
Cable RoutingInternal
MaterialAlloy
Defined ColorBlack
Clamp StyleStd Rails
Offset (mm)0
Shipping
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Customer Reviews

Based on 69 reviews
77%
(53)
14%
(10)
9%
(6)
0%
(0)
0%
(0)
R
Ronzo

This dropper worked great for us. My son is a skilled rider and it has been durable.;

P
PATTY RUSSELL

This dropper post was for an internal installation and the mountain bike we needed it for required an external dropper post, so we returned it. I'm sure it would have been good, but it wasn't the right one for the mountain bike we have.;

G
Gobbledeegook

Just installed my Highline Dropper and took a ride around the block playing with it. It’s way better than my TRS Dropper. It’s super solid with no play in the seat. The remote is extremely adjustable and the whole thing just works great. Some may think the seat moves up and down too slow, but I think it’s fast enough. The only reason I didn’t give it five stars is that I haven’t used it on the trails to further evaluate it.;

U
U.S. Soldier

I’m 6’ and 200lbs, this seatpost hold my weight with no issue;

M
Mark

be careful when tightening small hex nut for cable under seat. I snapped my hex nut off so now when the cable stretches I can only adjust at the front barrel for so long....great product though, user error.;