You need an attorney to make sure:
You are not being taken advantage of by the insurance adjustors;
You maximize your recovery;
You have someone on your side because the insurance company has many lawyers and adjustors who are working hard to reduce the insurance companies financial exposure;
You don't make statements that will hurt your case while you are talking to the adjustor;
You are being treated by competent doctors and medical care providers who will be able to prepare a report properly explaining the full extent of your injury;
Your motorcycle accident scene is preserved in good photos;
The motorcycle accident is properly and completely investigated and reconstructed by trained experts;