Trek-compatible seat mast cap

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

1. Ultra-light carbon construction
2. Direct fit on all Trek road bikes with round seat masts
3. Color-matched for direct compatibility
4. One bolt head design offers easy fore-aft and infinite angle adjustment
5. Includes 7mm round saddle clamp ears, 10mm ears sold separately
6. Tighten seatpost clamp bolt to 6-8 Nm