Bontrager Rotary Head Seatpost Head Part Kits
Upgrade or refresh your Bontrager seatpost.
Genuine replacement parts
When it's time to refresh or upgrade your seatpost, Trek Genuine Replacement Parts have you covered.
- Original equipment replacement parts for your Bontrager rotary head seatpost
- Kit contains 7mm round seatpost ears, inner cones, bolt, and spring
- Compatible with 2010+ Bontrager single-bolt rotary seatposts and seatmast caps