Originally Posted by
JohnDThompson
Back in the early 80s we did some hardness testing on various chainrings. Surprisingly, Stronglight rings were the hardest, followed closely by Campy. Sugino, SR and Shimano were in the middle. TA was the softest.
Interesting though that Stronglight specifically noted that they designed their 80's 106 and 107 model cranksets with "softer" alloys in their crank arms/spiders to avoid cracking that was being experienced by some with Campagnolo cranksets.
Chombi