531Aussie

According to this, the Aksiums are only 5 watts less aero that Lightweight Obermayers



..............................."watts absorbed at 50kph"

Zipp 808......................................18.1
Ritchey WCS Carbon....................19.3
HED Hed 3...................................19.7
Vuelta Carbon Pro WR.................20.8
Easton Tempest II Carbon...........21.6
CKT Splendor...............................21.7
Mavic Cosmic Carbone SL.............21.9
Shimano WH-7801 Carbon 50......22.9
Campagnolo Bora G3....................23.0
Rose Aerospoke...........................23.0
Corima Turbospoke ......................23.1
Bntrga Race X Lite Crbn aero........23.4
Fulcrum Racing Speed...................23.7
Gipiemme Carbon 5-5...................24.1
Tune Olympic Gold 2005................24.1
Shimano WH-7801 Carbon............24.4
FRM FL-R 23 SD Aerolight..............24.6
Corima Aero..................................24.7
Lightweight Obermayer................24.8
Xentis Mark 1................................25.0
Citec 3000S Aero..........................25.5
Shimano WH-R560........................26.1
Lightweight Ventoux/Standard.....27.3
Campagnolo Eurus........................27.8
Tune Skyline 2006.........................28.1
FSA RD-600...................................28.7
Mavic Aksium Race........................30.0
Citec 3000S..................................30.6
Ambrosio X-Carbo.........................31.5
Campagnolo Hyperon...................32.1
Mavic Ksyrium ES..........................33.2