Seatposts

Replacement saddle ears for use with Bontrager saddles

Fits MY19+ Madone SLR, MY20+ Domane SL/SLR & MY20+ Madone SL. Integrated rear light bracket cleanly mounts between saddle rails Only compatible with Flare RT Not compatible if used with a seat pack

Madone 9-Series Aero Seatpost Head Parts Kit

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. Key features: - 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 - 175mm and 135mm lengths - 5mm and 20mm offsets - Aluminum clamp