Profile Design ALTAIR Tubular Wheels is a Custom rim shape manufactured with high temperature resin for better performance Using data of wind speeds from Ironman and Ironman 70.3 courses and typical age group performance, Profile Design used CFD (Computational Fluid Dynamics) software to optimize the rim shape using, for the type of real world conditions that most athletes will encounter.

• Proprietary precision machined alloy hubs with custom depth flanges for extra stiffness

• Sapim CX Sprint spokes with hidden nipples for additional aerodynamics

• Sealed cartridge bearings

• Hand-built assembly

• Includes brake pads, QR, valve extenders, spoke tool, spokes and nipples (2 front, 4 rear)

• Size 700c x 20H Front/24H Rear, Radial front, 2X rear

• Color carbon finish with colored decals, black hubs and black spokes

• Weight 1443 grams

• Wheels come standard with a Shimano/SRAM compatible freehub.

• Campagnolo freehub option is sold separately.

• Wheelset are covered by a two year worldwide warranty and are backed by Profile Design customer Service