Profile Design Sonic Ergo 39a BX Apparel Smart Valve: Automatic opening and

Smart Valve: Automatic opening and closure

The power of BOA secures this 2-5L Seat Pack to ensure you can pack for an all day adventure or fastpacking event

|Thru: 142mm

Low-profile race-pad designed for zero movement while riding

Profile Design Sonic Ergo 39a BX Apparel Smart Valve: Automatic opening andThe 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