In my experience, I've noticed that chainring teeth tend to wear overall. They get thinner and the tooth form gets pointy like the old style Stronglight chainrings. I've never noticed any hooking like on rear sprockets.
In June of 1975 I got two sets of Suntour Cyclone derailleurs from the first shipment to reach the US. At the same time I received a set on Weinmann Carrera brakes that had just hit the country too. Put them on a new frame I had built for me by the folks at Gus Betat in New Orleans. I installed a new Stronglight 93 crankset and forsake all my Campy gear except for hubs.
The reason why I went with Strong light is those sharp teeth picked up the old style latterly stiff Sedis chains better than Campy chain rings. Faster more positive shifting.
I suspect that Stronglight changed to more conventional style teeth when better shifting chains came along in the late 70's.
verktyg
