New owner... Vibrations.. And a question

[pekingduck]

Hi everyone,

recently bought a CB1100EX 6speed that had just been run in.

I really like the bike in all respects and it seems perfect for my needs.

Except, on my bike, the constant vibrations/buzz in the midrange (from 3K to 5K) are intensely intrusive. To the extent that on a recent 3 hour run, my hands and feet were buzzing for several hours afterwards. I was wearing full riding gear.

I have been riding for 20 years, everything form old brits to racing ducatis with many guzzis in between and a fair few inline 4s. My daily round town ride up until now has been a 1970 Triumph twin and that causes me no problems in terms of vibration! (I mean the thumping vibration is there, but it is transient, unlike the constant buzz on my new honda) Heck, I've been using a 1960s guzzi police bike for the past 4 years for my long distance work.... So I don't believe I'm overly sensitive to vibrations.

I use a motorcycle as my primary mode of transport and ride far and often.

There are a few others who have complained about vibration on this forum and many who haven't, what I'm trying to figure out is whether my particular bike has a fault or if this is just a characteristic of the model.

Do you all just keep the revs under 3k?

Does anybody out there have a bike that is smooth between 3K and 5K?

Any info/data points gratefully appreciated

Ride safe,

So sad I found your post so late but, I bring it to the attn of new owners/pretenders, maybe it's helpful, maybe someone(new) has found the solution or, just for info! 
I have the perfect identical problem as  lazz_imp with my 2017 RS, constant & intense vibrations/buzz in the same range of 3500-5000 rpm, no matter the speed, gear or if it's on stand. I can't do a ride longer then 1-2 hours without getting my hands numb; never met before in my entire 40+ yrs of riding.  All this year I've checked at several mechanics and dealers, no answer/solution. I've changed oil type, sparks, balancer check, tighten bolts,  etc... nothing. It seems that is an engine internal mistake/failure(for a batch/units). 
If any of you encountered that too and find the right mechanical solution, don't hesitate to post it here asap, grateful appreciated!

My situation is very much like yours.  I've had 4 CB1100s, all the same vibration-wise. I thought the 6-speed would change things, and it does a little bit. I still have to fluctuate the highway cruising rpm, and alternate between 5 & 6.  It was the same on my '90s Katana 600 and 750, and FZ-1 - I would always be looking for a higher gear. 

Most of my miles have been comfortably spent on 90 degree v-twins or counterbalanced vertical twins, (and my rubber mounted Norton or CBX).  All were better than that high-frequency vibration.  It's ironic that I now limit the CB1100 to shorter trips under 100 miles, and use a Triumph Bonneville for longer trips.