Grinding noise/feeling around 6000rpm

[OutofFaze]

Thanks for the replies everyone.

I'll check the chain again and measure the slack properly.

The sensation is definitely related to engine rpm, as far as I can tell and doesn't seem to matter which gear I am in.

I also wondered if my brakes are dragging on the front, but I don't know why I would only feel that at certain rpm...

I'll keep an eye on it. It's still under dealer warranty (even though I bought it used - Sweden is good!) so if I can't figure it out I'll get them to take a look.

James