The Crankbrothers Highline 3 Dropper Post (125mm Travel, 30.9mm Diameter) is a highly reliable, mid-tier, internally routed dropper seatpost engineered for trail, cross-country, and enduro mountain biking. It delivers a smooth feel and infinite height adjustment via a cable-actuated, self-contained hydraulic cartridge system.

Key Performance Highlights

• Premium Internal Components:
  Features elite Trelleborg sealing and exclusive Igus LL-glide bearings to entirely eliminate side-to-side saddle play while keeping dirt, mud, and water out of the mechanism.
• Quick-Connect Activation:
  A tool-free quick-connect mechanism at the base of the post allows for exceptionally quick and painless cable installation and housing management.
• Shallow Insertion Depth:
  Designed with a short overall stack height and a minimized minimum insertion length, making it compatible with compact frame designs or bikes with curved seat tubes.
• Included Hardware:
  Comes equipped with high-quality Jagwire ultra-slick cables and housing right out of the box, ensuring low-friction lever feel.

Product Specifications

• Product Name: Crankbrothers Highline 3 Dropper Post
• Travel: 125mm
• Diameter: 30.9mm
• Total Length: 421mm
• Routing: Internal stealth only
• Material: Premium 7075-T6 Aluminum
• Warranty: 2-year manufacturer warranty
• Remote Lever: Not included (must be purchased separately)