damn. I'm gonna put my inch pitch 151 pista cranks / cog / chain up on ebay... hah
Well, I also got a pair of older Campy Pista cranks, 165mm 151bcd with that extra fat chainring. Let's just consider them as investments for the future. ;)
Yeah those are for 1 inch pitch "skip-tooth" chain. If I'm not mistaken, they still used it in States in late 50's.http://images.andale.com/f2/115/106/3561856/1104093602562_chain_inch_pitch.jpgIn europe 1/2 inch chain was popular already in 40's.
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