Topeak Fastfuel Top Tube Tribox - Black

An aerodynamic top tube box which minimizes wind drag while eliminating interference with legs. Mounts by built-in top tube integrated bosses or secure scratch-free straps. TRP/Polymer construction Attaches by top tube mounts or scratch-free straps Fits 33-72mm diameter top tubes Note: Sand, dirt, mud, etc., and bags that are incorrectly pack may cause the bike frame paint in contact areas become dull or scratched over time. To avoid any potential damage, you should protect the frame or rack with foam covering or protective film before attaching bags or panniers.