Originally Posted by
Trakhak
Even the 1970's-era three-arm Gran Sport crankset (or whatever it was called) had steel crank arms but aluminum rings (riveted together to form a single unit that then bolted to the crank arm).
was it these?
these were on Billy Ketchum's Holdsworth back in 2016.
I gotta admit.. the three-arm cranks have a certain aesthetic appeal, with the exception of the Sugino Maxy cranks of my youth. Perhaps I'm just too familiar with how marginal they were?
Steve in Peoria