Counter-steering physics 101

[aaronb]

i was thinking about this a few days ago, if a motorcycle truly did turn as described, wouldn't a front tire last significantly longer?

[ahb]

There was a study done regarding this very topic in the bicycling world.  The folks doing the investigation built a bicycle with a second front wheel which spun in reverse (it didn't touch the ground, obviously) to cancel the gyroscopic effects of the front wheel.  Bike was still stable and turned predictably/normally.  Conclusion: gyroscopic forces are negligible in terms of bicycle stability.