Had a short test ride yesterday, mainly low speed so couldn't be sure about high speed wind noise. It is noticeably light and the XL is a snug fit for me. At low speeds it is very quiet, so quiet that I can only hear the exhaust note and no other mechanical clatter. I can't say I had no neck ache at all but it was much reduced, enough so for it to be no longer a problem. So, highly recommended.
