Restore Smooth Dropper Performance

The Trek Line Dropper Seatpost Cartridge 31.6mm 150mm is a genuine replacement internal cartridge designed to bring your dropper post back to like-new performance. Engineered specifically for Trek Line dropper posts, it delivers consistent actuation and reliable return speed across its full 150mm travel.

Ideal for servicing worn or sluggish posts, this cartridge replaces the internal mechanism, eliminating excessive play and restoring smooth operation. Its precise construction ensures proper fit and function within compatible 31.6mm seatposts.

Whether you're maintaining your trail bike or extending the life of your existing setup, this cartridge offers a straightforward solution to keep your dropper running reliably.

Key Features:

• Compatible Fit: Designed for Trek Line dropper posts with 31.6mm diameter.
• 150mm Travel: Supports consistent drop and return across full travel range.
• Replacement Cartridge: Restores functionality to worn or failing dropper posts.
• Smooth Operation: Improves actuation and return speed.
• Durable Construction: Built for repeated trail and all-mountain use.
• Maintenance Solution: Extends the life of existing dropper systems.