You are reading a single comment by @1922 and its replies. Click here to read the full conversation.
  • @ maxcrowe, did know the answer to that one many years ago... Shall try;
    hmmm, might be those chainrings are oval in shape, so makes it easy to push,
    as the shape gives extra torque on the down stroke, is this right?

About

Avatar for 1922 @1922 started