The last week or so the 550 has developed a new sound or at least I have started to notice it. It is a cyclic sound that is directly related to road speed, not engine speed. The sound is kind of like the scuffing of rubber. Sort of like when your kid scuffs their shoes because you wouldn't buy them that lolly/toy.

My thoughts are the chain, so I got some new aerosol type chain lube and gave it a clean and a spray. I checked the tension and I have about an inch of play when the bike is on the centre stand. There is no lateral movement in the chain and I am still well on the engine side of halfway on the adjusters.
When on the centrestand the cahin looks to be rubbing or very close to a bushing on the swing arm pivot. The noise is only evident at lowish speeds....City commuting type speeds.
Any ideas?
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