Paul Component Engineering Neo Retro Cantilever Brake Set The Neo-Retro is a wide-profile cantilever brake with a design based on the geometry of the famous Mafac Tandem brake. Where the Neo-Retro differs from its classic heritage is in its modern materials and adjustability. Note: These are very powerful brakes and have a tendency to overpower thin tubed frames (in any material). For none-too-stout frames and forks we recommend our Touring Canti. Also, the arms stick out a lot! For smaller frames, bikes with bags, and people with large feet there can be some interference problems, in which case the Touring Canti might be more appropriate.