Howdy all, I've just started noticing a slight ticking noise coming from my bike. I'll be doing around 60-70km/h in 3rd at around 3-3.5k rpm - just cruising through town. It's not very loud at all, and as you accelerate it goes away - or the ticking is just not noticeable over the sound of the bike - one or the other. Does anyone know what this might be? I've checked oil, chain, general look over the bike for anything obscure but nothing pops out. The bike otherwise runs perfectly fine - it accelerates and changes gears smoothly etc. It's just this ticking noise that has got me worried. Thanks.