Profile Design Sonic Ergo 39a Shimano it will leave your chain

it will leave your chain perfectly clean

Ergonomic Chamois: Ultra-comfortable two-piece chamois offers support for extended rides

With a relaxed yet tailored fit

Steel striking face: 35 mm (1

ELEMNT ACE is designed to keep you connected and informed from start to finish

Profile Design Sonic Ergo 39a Shimano it will leave your chainThe 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 39A is one of the newest versions of our reliable aluminium extension range. Specifications Bracket: SonicClamp Diameter: 31. 8mm (26. 0 w Shims)Armrest: Ergo 10mm PadsArmrest Width: 124mm to 290mm