21-09-2020, 07:56 AM
Whilst hewing path through my basement I stumbled upon my collection of cracked cranks. There has occasionally been mention of ringing so I had a little play. I have rung many Javelin cranks and timed the sound and found wide variation between shafts apparently all OK and one with small crack. I have hung Seven shafts from the front and rear with no conclusions. This time I rested on a narrow edge at the centre. With the other end held the fronts rang clearly better than the rear where the known cracks are. Has anyone done this with a known good crank and is there a significant difference depending whether the front or rear rung?