Sonic Ergo 52a Saddles X-TRACK cleats are compatible with

X-TRACK cleats are compatible with all SPD-standard pedals

Benefits: Lightweight

short bar ends ideal for riders who need more forward and wide positioning in order to climb without sacrificing weight

With precision engineering and an adjustable torque range of 4-6 Nm

Depending on your preference

Sonic Ergo 52a Saddles X-TRACK cleats are compatible withOverview The 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 optimising their position for both speed and comfort. The 52A is one of the newest versions of our reliable aluminium extension range. Performance The Sonic Ergo is designed to present minimal frontal area to create as little aerodynamic drag as