Before I bough one, I Goggled a bunch, and it seems that people have used those batteries in colder weather without problems. Not sure how low of a temp I would want to ride in, but I suppose if you want to ride in real cold weather, you could leave the headlight on for a few, before trying to start. Shorai has that in the FAQ on their website, they say that it helps to warm up the battery....but I think this is for really cold weather....not motorcycle weather.
--Nick