Marquee

Seatposts

Saddle setup is one of the most critical elements in achieving a proper bicycle fit, making a highly adjustable seatpost essential. The unique clamp design found on Bontrager seatposts sets them apart from the competition in both functionality and performance.

Mountain

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XXX

Bontrager's lightest seatpost, the XXX features a high strength, HCM molded carbon tube and head. Infinite angle adjustability lets you dial-in the perfect saddle tilt. Reversible design increases fore-aft adjustment possibilities.

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Race X Lite ACC

With an Aluminum Core Construction underneath a carbon fiber sleeve, this version of the Race X Lite is designed to withstand extreme crush loads, making it perfectly suited for both mountain and road applications.

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Rhythm Pro

XC light. Big hit strong. Bontrager's Rhythm Pro utilizes finite element analysis and an internally ribbed, 3D forged tube to create an all-mountain tough seatpost with optimal strength-to-weight. Its long rail cradles provide extra support for saddle rails, and a two-bolt attachment system offers convenient, micro adjustability to fit a wide range of bike styles.

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Race

Light enough for high performance and strong enough to handle any conditions, this aluminum stem will work great on your road or mountain bike. And the forged, single-bolt head is infinitely adjustable for dialing the perfect position.

Road

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XXX

Bontrager's lightest seatpost, the XXX features a high strength, HCM molded carbon tube and head. Infinite angle adjustability lets you dial-in the perfect saddle tilt. Reversible design increases fore-aft adjustment possibilities.

GO

Race X Lite ACC

With an Aluminum Core Construction underneath a carbon fiber sleeve, this version of the Race X Lite is designed to withstand extreme crush loads, making it perfectly suited for both mountain and road applications.

GO

Race

Light enough for high performance and strong enough to handle any conditions, this aluminum stem will work great on your road or mountain bike. And the forged, single-bolt head is infinitely adjustable for dialing the perfect position.

Triathlon / Time Trial

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Speed Concept Post

Designed specifically for Speed Concept frames, this full-carbon, highly aero seatpost is customizable with a reversible design and available accessories: 35mm head offers 75 to 82 degrees; 10mm and carbon rail-specific head is also available.

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XXX Full Aero TTX

Designed exclusively for Trek's Equinox TTX bikes, this extremely aerodynamic seatpost uses proprietary OCLV Carbon technology to keep weight low and strength high. The one-bolt seatpost head provides adjustment along three axes: fore and aft, side to side, and up and down. Symmetric design allows you to run either a 20mm rearward or 20mm forward offset, effectively changing your seat tube angle from a traditional 73 degrees to an aggressive 79 degrees.

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Speed Concept Post Head

Available in 35mm or 10mm offsets, as well as a carbon rail-specific model, for optimal fit and customization, these forged alloy post heads are super strong and light, with a one-bolt design for easy, secure mounting.