Trek Carbon Seatmast

Offered in white and black and a variety of lengths and offsets, the mast cap includes hardware compatible with round saddle rails only. 7x10mm carbon rail-compatible hardware sold separately.

Product details

Ultra-light carbon construction

One bolt head design offers easy fore-aft and infinite angle adjustment

Compatible with all Trek road bikes with round seat masts
Aluminium clamp

Includes 7mm round saddle clamp ears, 10mm ears sold separately