Carbon Seatmast Cap for Trek Road Bikes - Round Mast, UD Carbon, 168mm & 20mm Offset

Bontrager Carbon Round Seatmast Cap 168mm 20mm Offset UD

Genuine Bontrager carbon seatmast cap for compatible Trek road bicycles with round seat masts. Features a 168mm length, 20mm offset, nude UD-carbon finish, carbon head, and newer two-slot mast-clamp design.

Product Details

• Brand: Bontrager
• Product Type: Carbon seatmast cap
• Mast Profile: Round
• Length: 168mm
• Offset: 20mm
• Construction: UD carbon
• Head Material: Carbon
• Clamp Design: Two-slot mast-clamp design
• Finish: Nude UD carbon
• Saddle-Clamp Assembly: Not included

Compatibility

Intended for compatible Trek road frames requiring a 168mm-long, 20mm-offset cap for a round seat mast. Compatibility is determined by the mast profile, insertion dimensions, cap length, offset, and clamp design.

This cap is not compatible with every Trek road bicycle. Compare it carefully with the original seatmast cap and confirm the required dimensions before purchasing.

Saddle-Clamp Information

The saddle-clamp assembly is not supplied with this seatmast cap. Compatible rail-specific clamp hardware must be obtained separately. Select clamp ears that match the saddle’s round or oval rail dimensions.

Installation Notes

Inspect the carbon mast and seatmast cap for cracks, crushing, or other damage before installation. Clean the mating surfaces and use carbon assembly compound when specified by Trek.

Installation should be completed with the correct saddle-clamp hardware and a calibrated torque wrench. Follow the torque specifications and service instructions provided for your exact bicycle and clamp assembly.

What’s Included

This item comes exactly as pictured. Please review all photos for the included components, mounting hardware, packaging, and condition.

The saddle-clamp assembly, rail-specific clamp ears, installation tools, carbon assembly compound, and additional components are not included unless pictured.