Originally Posted by
Portis
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Regardless, EVERYTHING is coated with a nice layer of ice. It isn't a thick crunchy layer of ice, but rather a thin, hard as diamonds type of ice. My Nokian Mount and Grounds showed that while they are decent for providing traction, they by know means make you immune to crashing.
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Certainly changed my perspective of studded tires and ice. They don't make you bullet or in this case, crash proof.
For off road riding I use Schwalbe Ice Spikers, and have no problems biking on sheets of ice, rough/coarse ice, lakes, etc. But I wouldn't use them for commuting.
The Nokian Mount & Ground are more of a commuter's tire, and the icy conditions you experienced were pushing their limits.