if you dont have spacers on front don't put in four as it will start rubbing, 3is bang on but if you have spacers go for it jus once your getting couple of threads back into the rack if you know i mean...euro coin is exactly 2mm so if you use 3coins = 6mm. so you need to adjust your rack ends that amount to even her out...pm if you'v any hassel mate
niall here