Lerxst
spaghetti and blankets
it's also the gyroscopic effect of the spinning tires/wheels, they tend to counteract the lean.
edit: that's why they can't lean anything like that at slower speeds. you HAVE to get the wheels/tires spinning at higher speeds to help "push" against the lean.
Ever see a police mc drill team? They will turn tight enough at 20mph to drag their pegs
The speed and cornering push your referral is usually called camber thrust
https://motochassis.com/Articles/Tyres/TYRES.htm