Likely to be the hydraulic housing that enter the frame from the top of the down tube.
It's a common complaint from the CAAD12 Disc owner as there's nothing holding the housing inside the down tube.
My biggest complaint is those bloody hydraulic hose decouplers. They rattle like nothing else on my bike. Bike assembly cheating I say. Poor show Cannondale.
@yeahdext started
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Likely to be the hydraulic housing that enter the frame from the top of the down tube.
It's a common complaint from the CAAD12 Disc owner as there's nothing holding the housing inside the down tube.