Maybe I'm one of the only people on here who never owned a motorcycle, but I've never noticed or practiced countersteering on a bicycle in the last 50 years or riding and racing. Given that it's easy (if harrowing) to carve corners with hands off the bars at speed on downhills simply by leaning the bike sufficiently, the descriptions of the subtleties of countersteering sound unconvincing. But then, like all Virgos, I don't believe in astrology, either.