BobG

The specific construction of the Blackburn cage that I pictured at posts 6 and 14 allows for multiple ties down the center of the mounting bracket, not just one on each end, without interfering with the bottle. My fork blades are fairly large diameter at the top, also one zip tie loops around the top of a cantilever boss preventing slide down. Not sure if your carbon fork is beefy enough for a cage to be zip tied securely to it. Also looks like the center section of the Zefal "Spring" is raised out of contact with the tube so you can't use ties there. Those Blackburn cages are just $4-$5 and weigh 54g.