Correct. Need more clearance=install smaller shim. Need less clearance=install bigger shim. Generally shims only come in increments of .05mm, so I would install a 2.65mm shim if that is near the middle of the specified range. Honda OEM shims come in .025mm increments if you want to be more precise.I need help calulating the shim size on my 99 zx6r. The question is if I measure my clerance with a feeler gauge and i get a clerance of 0.15 for example, but the required clerance is 0.23, and the current shim size is 2.75. Do I compute the new shim size like this: 0.23-0.15=0.08 which leads to 2.75-0.08 which gives me a new shim size of 2.67? I seen this online and I just wanted to verify.
Check out the attached spreadsheet for calculating shim sizes.