Big Brake Kits are usually significantly larger than stock brakes so you want to ensure your stock or aftermarket wheels will clear once installed. Usually the diameter is not the issue but the wheel offset is. The offset is the face of the caliper and if the wheel spokes will rub or not. Our most common front brake caliper is the EX6 kit. We always recommend to CONTACT US about fitment, but you can also use our brake clearance print here.
Open the PDF and print it out. Do not scale it as this is meant to be a 1 to 1 size. Once printed out, cut the outline of the diagram out. With your wheel removed or your new wheel out of the box, place the diagram from the center of the center cap hole to see if the caliper will hit your spokes. It is recommended to have AT LEAST 3mm of clearance between the caliper face and the wheel spoke.