Yes To do the Math you must have numbers.. Measure .

take the outside diameter of the handle bar where you want to mount the aero bar .

subtract that from the inside diameter of the Aero bar clamp, then divide that in half..

that number is how thick the shim material must be..

maybe a section of aluminum tubing can be found with the right wall thickness , to use as that shim stock.



A digital caliper is very useful , and the china made ones are cheap enough..