Sonic/Ergo/52a Aerobar Bottom Bracket steel construction for added durability

steel construction for added durability

80% nylon / 20% spandex

Single Speed chain with PowerLock 1S Connector

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

Sonic/Ergo/52a Aerobar Bottom Bracket steel construction for added durabilityThe 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.