if you need the 4 hole pattern for speedplays, they come with an adapter that converts the 3 hole shoe to a 4 hole. You can buy it from the speedplay site if you lost the original or never got one to start.
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2010 Kestrel RT900SL, 800k carbon, chorus/record, speedplay, zonda
2000 litespeed Unicoi Ti, XTR,XT, Campy crank, time atac, carbon forks