The one, the only!  Welcome to the gold standard for track cranks.  The Sugino 75 has proven itself the World around by both bike messengers and World Cup trackies.  They are as stiff as a square taper crank can be, resulting in optimal power transfer.  Sugino makes the 75 in 165, 167.5, 170, 172.5, and 175mm arm lengths.  Available with classic matte silver finish and also in black.  Both the Sugino 75 arms and chainrings (as well as the Zen ring) have the NJS approval stamp (silver only.  Black and NJS are like oil and water).  We let you choose the chain ring size, or purchase the arms only. The Sugino 75 is compatible with square taper 109mm ISO bottom brackets (Sugino, Phil Wood, Hatta, or Campy) and is made with a track standard 144mm bolt circle diameter.