That's exactly my experience too.I guess I hadn’t thought about the clunk. This morning I went for a couple of hours ride and noticed that when I shifted from 1st to 2nd under 20 MPH the clunk is not as noticeable. But when I shifted from 1st to 2nd over 20 MPH the clunk is more pronounced.
Agree with other replies. I switched to full synthetic oil after I read some post that claimed it made it quieter. Same as before, just got used to the clunk as normal.2018 Vulcan Voyager I have 1000 miles on it is it normal for a loud clunk shifting from 1st to 2nd. Is this something that is normal until the bike breaks in with more miles on it? Or is it a concern only does it up shifting not downshifting.