41,000 miles on my 2015, clutch basket done at 30k miles. No vibration felt till over 20k miles. They don't fail, the bike just shakes at about 3000rpm and just gets more and more annoying but they don't fail.
Don't worry at 6k you should be fine for many miles yet.
Tips, a Suzuki mechanic told a friend to get the revs up more, not to lug the engine, I didn't.