From the Cervelo website:

While over 500 grams lighter than most carbon track frames, its torsional and bottom bracket stiffness surpass all others. The aero head tube and track-specific fork cater directly to track riders. The head tube gusset not only improves the trailing edge of the head tube shape but also significantly increases torsional stiffness.Drop outs are reinforced with stainless steel faces to provide durability and ensure smooth wheel mounting.

A couple of details on the bike:

-Mint condition, ridden less than 100 miles

-Easton EC90 Fork

-Aluminum Tubular wheel set with Continental Tires

-Carmelo bull-horn type handle bar

-SRAM brake lavers, right one is NOT connected to a brake

-46 tooth crank and 16 tooth freewheel (NOT FIXED)