Thanks. The mirrors are R6 mirrors. The two posts are closer together than the stock mirrors. So you have to drill a third hole for the post. Just take the stock ones off, measure the center to center distance on the new mirrors, and drill a new hole that matches that measurement. Just make sure that they're inline, and the same on both sides. The other option is to get Kawasaki ZX10 mirrors. I think those bolt right up.