S&S couplers are necessary for bike travel these days. Bikes now incur a $175 surcharge on any domestic flight I've been on in the past year. If you can get the

S&S couplers are necessary for bike travel these days. Bikes now incur a $175 surcharge on any domestic flight I've been on in the past year. If you can get the bike into a suitcase you avoid the charge. However, couplers on a real bike are nothing like a strida, brompton or bike friday tikit. These bikes are designed to fold up and unfold very quickly. They are also much smaller and can fit on public transportation where you're not allowed to take a full sized bike.