These are the narrowest nuts I could find with a wrench at around 22mm compared to the Muteki hex tuner nuts which were quite narrow but the wrench was about 25mm and didn't fit. suitable for XXR rims with only 24.3 mm bore. It doesn't depend on the diameter of the nut. Wrench size does matter as almost all "tuner" lug nuts will fit any rim, but the wrench needed to tighten them may not fit small holes like an XXR rim. They fit my Vossen rims and I haven't measured their exact lug hole size but I would estimate them to be around 26-27mm based on the 1-2mm extra space I had around the Muteki key which is 1mm was wider than necessary. in XXR studs. These lug nuts seem to be just as good as the Muteki but are smaller in diameter. Wrap the wrench in Teflon tape or other tape to avoid scratching the inside of the eyelet holes. Also make sure the wrench does not land where the hex head flange touches the rim. The tire shop I got the tires at didn't notice and that allen wrench/collar damaged my XXR rims in 3 places which wouldn't happen if you held it just 1/8" from the sharp hex would. Collar/Shoulder Keys to the Edge.