Extremely rare NOS Stronglight 107 crankset with 51 tooth Delta chainring and 42 tooth chainring. Has been in box for 30 years so not absolutely perfect, but just about. Nice milled chainring. Super light version. 177.5 mm arm length. Indicates 14.125 French pedal threading but it has been professionally thread tapped for 9/16 x 20 standard pedals. Don't miss out on this rare crank in NOS condition. Send me reasonable offers.