Stronglight Spidel 107 crankset 172.5 mm
A Stronglight Spidel 107 crank set. It is the top of the line crank from Stronglight of the 80's late 70's. It fits to your classic road bike for instance Peugeot PY10FC, Peugeot PRO10 or Vitus Dural 979 and Vitus Carbon frames.
With an arm length of 172.5 mm and a BSA ISO 9/16 x 20 pedal thread.