2018 R3 sounding funny after highway?
little bit of background, I've had my R3 for a month now, I bought it second hand, it's 2018, and only done 3,900kms when I bought it, the guy who had it had it for sitting licenses and a bit of commuting (we in new zealand).
I find that after about 20 minutes on the highway (100-110 kmph) the engine is sounding different when travelling at speed (a bit of a whine/ sounds like it has a turbo) and once I'm done, when the bike is idling it has a bit of a 'knock' vibration to it.
I've never had the temp exceed 3 bars, and I warm the bike up before use, I don't do many launches.
Any advice? Is this normal or should I $ for it to get looked at?