i don't listen to music on my bicycle, but despite this I still rely nearly 100% upon good old trusty visuals. i ride fixed and on the road and street, often in car-door country, and therefore i'm looking out all over the shop.

i rely upon motorists to not smash into me from behind. if i stopped riding or pulled over for every car i hear revving behind me I'd never get anywhere i think that means i'm in the habit of ignoring sounds from behind me.

as a cyclist here's something that troubles me more: pedestrians that solely rely upon their hearing before stepping out onto the road.