I have a Flo Carbon Clincher disc for sale. Center is Sram/Shimano compatiable. Has been made use of for 3 races. Flo wheels are popular and this wheel is still offered out after 12 preorders. $500 company.

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　　The FLO DISC is the fastest wheel in our line up and it's the perfect wheel for Time trials and triathlon. It's lenticular shape produces unfavorable drag from 12 to 24 degrees of yaw. That suggests it's pressing you forward!

　　The FLO DISC was developed from the ground up with aerodynamics in mind. Its distinct rim shape was developed making use of CD-adapco's STAR-CCM+ Computational Fluid Dynamic Software, and checked in the A2 Wind Tunnel. The wheel is finished off with Sapim Laser spokes, FLO VORTEX Hubs and 24.4 mm FLO WIDE RIDE rims that lead to an unbelievable trip.