[Klugschnacker]

Specialized Shiv time trial bike banned by UCI?
"The bike has an insignificant piece that does not fulfill the regulations and therefore I can not compete with the bike with which I have been training."

The focus of the issue is apparently the Shiv's aerodynamic nosecone, which is bolted on to the bottom of and extends below the stem, thus effectively increasing the aspect ratio of the head tube beyond the allowable 3:1 and reducing drag relative to a conventional head tube. Up until now, Specialized (and others such as Trek, Giant, Felt and Look) bicycle manufacturers have avoided reprimand from the UCI since the deeper section results from two structures instead of just one.
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