Bontrager Line 34.9 Dropper Seat Post

A reliable dropper seat post with a 3-key chassis design that minimises shaft play for a post that provides smooth and consistent travel adjustment.
- The air-sprung hydraulic locking cartridge offers infinite adjustability within dropping range
- The 3-key chassis prevents rotation for a stable ride
- The 2-bolt rocker head with micro adjustment allows for easy saddle tilt adjustment
- Shorter overall length [versus previous version] allows more adjustability and compatibility
- Internal cable routing keeps housing tucked away and free from moving wheels
- The frame must be compatible with internally routed seat post routing

Sizing and fit
Click 'Learn More' to dive into the details and ensure that you get the right size seat post that will work with your frame and fit needs.

Travel reducers for the perfect fit
Fine tuning your travel is fast and simple. Travel reducers are available in 10 mm and 30 mm sizes and install in minutes. Simply loosen and lift the collar and fitting, align the reducer, reinstall the fitting and tighten the collar back up. Getting the perfect fit is easier than ever.

Faster Return
MaxFlow technology moves hydraulic fluids through the system quicker, for a faster return and smoother overall operation.

Easy to set up, easy to drop
The Line Elite 34.9 requires 20% less saddle force to lower the saddle and comes with one of the easiest installations in the business.

Larger 34.9 Diameter
The post?s larger diameter allows for an increase in structure strength and provides better performance with less stiction, less side-play and better durability.