High Frequency Vibration Over 4500rpm

Hi folks, I have a triumph tiger sport 1050 2018. I love the bike but it has an issue that is driving me crazy.

the bike is almost new, It has only 7500miles (12.000km) [ it always had the same vibration. ]

from 4500rpm it start to have a high frecuency vibration that's amplified on the handlebar (I can't feel the vibraton on the chasis, it's just on the handlebar) , it's stronger on the right side, and the mirrors become almost unusable at certain point (very dangerous), this is not a great problem on a short trip, but more than 40 minutes riding it it's exausting, it's not a heavy numb, its like a tingle, but its very anoying and it remains for hours in my hands.

I checked my wheels balance, the chain tension, tune the suspension, the stock exhaust, an sc project exhaust, with or without sw-motech fender, changed the air filter, etc. etc. (the stock bike has the same vibrations), besides, the vibration is there without moving the motorcycle, just accelerating in neutral at 4.500rpm or more, but because it's a high frecuency vibration it doesn't feel bad right away.

I went to the dealer and it was a wast of time, worst service ever. (triumph dealer in chile it's a joke, they don't even have the basic spare parts, like oil and air filters, not mention the customer aftersale service, they just said never heard of a vibration on a triumph motorcycle and did nothing at all.)

I installed a ROX anti vibration handlebar riser (it helped, but it's not enough)

it's like driving a huge vibrator, I tried to saw if the vibration goes away at higher rpm, but everytime I reached 8500rpm I had an orgasm and had to stop 15 minutes to smoke a cigarrete.

Im about to buy a pair of grip puppies and put a heavier bar-end weights, but I'm feeling I'm hidding the real problem.

any idea is welcome.
thank you very much.

PS: sorry about my english, is not my language

 

hi sprinter! yes i did it, the roads here are not so good, so we usually use lower pressure than the manufacturer recommends. I'm using 33psi at front and 36psi in the rear tyre. (about 2.25bar and 2.5bar)
it improved the hard vibration from the ground to the handlebar, also I set up the rebound to be a little bit fast, that way the suspension is not suffering from "packing".
but I'm pretty sure this high frecuency vibration comes from the engine (but you know, this kind of things are transmitted from anywhere to all the motorcycle and is pretty hard to find out the exact source, it's just my guess)

 

that sounds good.

do you know where I can find the correct torque for this model?

 

yes, a sw-motech engine bars, but the vibration is the same without them.

 

I removed the handlebar and the rox handlebar riser, removed the engine bars.
I installed the engine bars again and re-tighten them using a torque wrench as closer as the workshop manual says.
I reinstalled the rox anti vibe riser (this time whith the anti vibre a little bit softer), and changed the angle to match the original handlebar setup, I tightened all acording to the manual. But it remains the same vibration. I can't feel it on the gas tank but in the engine itself , and is transmited to the handlebar trought the chassis.
I took a video with the bike stand still and accelerating between idle and 7000rpm, it doesn' t seem too much on the video, but remember it's a high frecuency vibration. I'll take another video at night, the lights in the mirror will help to show the vibrations.

 

guys thank you very much!
someone has the procedure/sequence to tighten the engine bars? (I can't find it)
and I'll go to my favorite lathe shop to make differents bar end weights and test how much I need.