PROFILE DESIGN ASC PRO 43 EXTENSIONS Size:375mm A close-fitting cuff and seamless

A close-fitting cuff and seamless fingertips ensure maximum comfort so you can focus on the trail ahead

622 x 28mm (ETRTO 28-622 / 700x28C)

the most important point where the rider's power is transferred to the bike

Compatible with MTX TrunkBags & rear baskets

Chainline 51

PROFILE DESIGN ASC PRO 43 EXTENSIONS Size:375mm A close-fitting cuff and seamlessThe ASC Pro reintroduces Profile Design to the one piece extension category that we first pioneered nearly 20 years ago with the Sonic Stryke. Designed for riders who demand performance and comfort, the ASC Pro is a sleek, high performance solution for time trials and triathlons. Built with aerodynamic precision, these extensions deliver the low, aggressive riding position that shaves seconds off your times. The integrated one piece construction