Profile Design 52 ASA Aluminum Aerobar Extensions

The Profile Design 52 ASA Aluminum Extensions are high-performance aerobar extensions designed to provide a comfortable, aerodynamic hand position for triathlon and time-trial riders. Constructed from durable 6061-T6 aluminum, they feature a 52° grip angle and a 16mm total lateral offset that helps align the extensions naturally with the rider's arms. The extensions use a 22.2mm clamping diameter, making them compatible with most standard aerobars. Their Kamm-shaped rise section improves aerodynamic performance, while ergonomic end caps provide additional hand comfort. Available in 340mm and 400mm lengths, the 52 ASA extensions support both electronic and mechanical shifters and are supplied as a pair for riders seeking improved fit, comfort, and performance.