Sonic/Ergo/52a Aerobar Bottom Bracket Multifilament / Vectran

Multifilament / Vectran

The disc brake rotor blade which has a 3 layer-sandwich structure of stainless steel

Featherlight & Functional—Robust polyester shell creates a lightweight

Extra strong axle

Prevents corrosion and water ingress so your bike’s components will last longer

Sonic/Ergo/52a Aerobar Bottom Bracket Multifilament / VectranThe Sonic bracket offers an extensive fit range, low weight and easy adjustment along with minimal frontal area. Combining this with the Ergo armrest creates an aerobar that will aid most riders in optimizing their position for both speed and comfort. The 52A is one of the newest versions of our reliable aluminum extension range. Performance The Sonic Ergo is designed to present minimal frontal area to create as little aerodynamic drag as possible.