Headlights from the cb450's and up all have the 7 in headlight for the most part... I have a larger style headlight unit and some fork ears from a cb450. I am unsure if the fork ears will work though as the spacing between the triple tree top and bottom is an important measurement to be accurate. I think the 750's had a taller spacing than the 450's but I'm unsure on the 550's. If you measure your triple tree opening, between the top and bottom, I can check to see if it will work. Send me a pm if interested. Paypal works for me also. Thanks.