I bought an S40 for my wife as a starter bike several years ago. For the most part the bike is pretty good. It was a nice, laid-back ride and great for someone to get used to riding. I even like to take it out when I needed a break from my sport bike.

The only thing that I hate, and frankly makes me wish I had never gotten it, is the handlebar vibration this thing gets at freeway speeds. Had I known this was an issue, there is no way I would have signed the paperwork on this bike. Seriously, riding this bike on the highway is like holding on to a cheap power tool from Harbor Freight.

I was hoping you guys on the forum may have dealt with this issue. I've done a fair amount of looking around and seen a number of possible solutions but would love to get perspective from actual S40 owners before I tear apart the handlebars of my wife's pristine ride. We live in an urban area so the better riding is outside the city and to get there you gotta take the freeway so its hard for her to enjoy the ride as much as I do and I really want to change that for her.

I know the vibration has a lot to do with this being a single cylinder engine but there has to be someone here that has been able to at least improve it.

Thanks for the fast reply! We have a 2012 S40, but I am not sure how to describe the bars, basically its the one in the link below just a year older.

http://www.suzukicycles.com/Product%20Lines/Cycles/Products/Boulevard%20S40/2...

Do you think that the motor mounts would be loose straight off the showroom floor? If so, that would sure explain a lot, cause that vibration has been there since day one I am going to check those this week at the same time I put the battery back in.

I am really itching to check those bolts now! My bike is a SV650 and even though its a V-Twin, it rides a heck of a lot smoother. The S40 is great at speeds up to 55 mph though.

Anyway, I'll check those out this week and update the post. Thanks again!