Well timed.
To get a sense of how effective they were for you, in which temperature ranges did you use them before you stopped riding?
Hmmm... not sure, I rode with those on during the winter in New York (snow on the road) so below freezing temperature, and I never used the lobster shell! So (depending on how warm/cold you get) I suspect you can ride well below zero.
@lc started
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Well timed.
To get a sense of how effective they were for you, in which temperature ranges did you use them before you stopped riding?