I recently purchased a Giant Trinity frame, and in the process of routing the brake cables through the base bar, discolored a blockage on one side. My guess is that the bladder used during the molding process didn’t get fully removed, so now there is no space to run a cable through. I plan to contact Giant to ask for their assistance, but figured I’d dop the question here for anything I could try in the meantime. The only thing that has passed through is water, but I cant find that hole with a cable.
Edit: roommate confirmed the bladder presence
