Repair or refresh your Bontrager seatpost.

GENUINE REPLACEMENT PARTS
When it's time to refresh your trusty bike, Trek genuine replacement parts have you covered.

PRODUCT DETAILS
- Replacement cartridge unit for Bontrager Line Dropper 31.6mm seatposts
- Regular maintenance will help maintain performance and e/tend lifespan
- Cartridge assembly includes bump stop and locknut
- Refer to Service Manual for assembly instructions and service