Quick Peek. SRAM Red One-Piece Cassettes - Call 'Em Industrial Art.

                                                                     Photo Courtesy SRAM

Machined from solid pieces of billet, these cassettes are not only beautiful to watch being made and admire before installing on your bike, but they are also awesome to use.

So, whether you are a fan of SRAM or not, you have to appreciate how Red OG-1090 cassettes get made.