http://www.competitivecyclist.com/12days?cmp_id=EM_SAL14023a1&utm_medium=email&utm_campaign=Save+50+on+Zipp+404+Clincher+Wheelsets+and+more&utm_content=Save+50+on+Zipp+404+Clincher+Wheelsets+and+more+CID_ef20f628f7b6484a9174c37ce956e721&utm_source=Email+marketing+software&utm_term=12+Days+-+Day+8+120711 .
are these the non-firecrest type?
Correct, NON-Firecrest. Aluminum brake track rather than a full carbon clincher.