valve timing inaccuracy?

[furious_blue_imp]

I saw an electric bike pull into a gas station when the guy he was riding with had to pull in for a fill up. I don't remember the brand of electric bike but it was quite thick and the one impression I was left with as it pulled away was the high pitch whine of the electric motor was unlike anything I'd ever heard. I found the sound obnoxious and have no desire for an electric bike but then I don't think they are being marketed to appeal to my age group.

Interesting, apparently Harley paid particular attention to sound that their electric project bike makes (according to a representative). Best as I can tell from the YouTube videos, their bike sounds a bit like a turbine, not too bad. While I will always want an internal combustion motorcycle, I could see riding an electric bike in rural areas, just for the relative quiet. It's one of the satisfying aspects of road bicycle riding (especially going downhill).. the scenery going by in relative silence..