Profile Design Sonic Ergo 52a FSD you can achieve lower rolling

you can achieve lower rolling resistance and more speed

but the packaging too

offering flexibility in syncing with a wide range of cycling computers and apps for real-time data monitoring and analysis

Free-flowing

One end of the BBT-9 securely engages the 16 notches of bottom bracket cups

Profile Design Sonic Ergo 52a FSD you can achieve lower rollingThe 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. Specifications Bracket: SonicClamp Diameter: 31. 8mm (26. 0 w Shims)Armrest: Ergo 10mm PadsArmrest Width: 124mm to 290mm