>>1970471NTA, and I tried to google an answer and not really finding anything there either.
But I'd wager that any "skidding" issue is down to surface area in contact with the ground.
With a pneumatic tire, it will deform in response to the force of gravity, creating a "flat" surface in contact with the ground.
With an airless tire, I imagine that the surface area in contact with the ground depends entirely on the construction and wear pattern in the tire. If you lean on the bike, the "natural" contact surface is lifted off the ground and now you're riding on part of the tire that's not flat.
Googling did suggest that riding-at-speed in general is also a potential issue with solid tires. Apparently they do little to cancel out vibrations that grow with speed (like an imperfection in the wheels or drive train).
