Profile Design - Sonic Ergo 39a S3-Cat-Components-RimTape Measures: 50mm diameter x 50mm

Measures: 50mm diameter x 50mm depth

520g ERD: 556

Video: RACE-READY HYDRATION BACKPACK

DEORE XT M8100 Series

Profile Design - Sonic Ergo 39a S3-Cat-Components-RimTape Measures: 50mm diameter x 50mmPROFILE DESIGN SONIC ERGO 39A REPLACES THE 35a & 43a 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 39A is one of the newest versions of our reliable aluminium extension range. Performance The Sonic Ergo is designed to present minimal frontal