New
#1201
Snow tires are speed rated like all tires.
With the thicker tread the heat build up is faster and not able to dissipate.
Go over 210km/h heat build up starts disintegrating them.
The tread will peel off in chunks or in one big piece like a semi truck tire when they blow.
Of course for safety 210km/h is not going to damage them necessarily the first time but age and length of heat build up.
Might be the first time or the 10th but there will be a last time.