The bass is excellent, as you literally hear it through your bones (ok, I know you literally hear everything through bones, but you get what I mean). Oddly enough, it's the treble that can suffer against wind noise at speed, or traffic noise. I wear a pair on my commute sometimes, along 11 miles of incredibly noisy cyclepath next to a busy 70mph dual carriageway, and music is still great but speech podcasts can get a little lost. If you're happy to cycle with headphones (and I certainly am), then I'd recommend them.