Profile Design 52 ASA Aluminum Extensions Size:340mm High-performance wireless shifting and hydraulic

High-performance wireless shifting and hydraulic braking system designed for road cycling

360° head belt with vertical adjustment for a customized fit

The new DUB（29mm） crank standard

Ergonomically shaped MTB barendsDual density compoundMatches with PRO gripsLength: 125mm

Profile Design 52 ASA Aluminum Extensions Size:340mm High-performance wireless shifting and hydraulicIntroducing the 52ASA the next evolution of our wildly popular Aero Shaped Carbon (ASC) extensions, now available in a sleek, high performance aluminum. Crafted with an advanced multi stage forming process, the 52ASA brings the same arm hugging benefits of our iconic shaped extensions, all at a more affordable price. The core innovation behind both the ASC and ASA series is simple: shift the extension sideways to seamlessly align with your arms