I wouldnt base an entire build on any headset or stem, both items are easily replaced. buy the frameset you want! if you can use any components in your spare parts box then cool for you but otherwise let them go.
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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