This topic came up in a different, somewhat unrelated thread so instead of taking that thread further off track I thought I would post here. Here is the original conversation that started me looking into this if you're interested, it's a great story: http://www.teslamotorsclub.com/show...-adventure-Frozen-stranded-but-loads-of-fun-)
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Answered my own questions.
Looks to be 50 state approved per their site: http://www.autosock.us/
And here is the size you want for the stock 19" tire size: http://www.amazon.com/AutoSock-AS69...F8&refRID=0P995SKPWTNFMET1915X#productDetails
And lastly according to their FAQ: "Can I use AutoSock on roads where snow chains are required?In the U.S., most states do not regulate traction devices for cars and SUVs. Currently, Colorado has approved AutoSock for Semi-truck uses when snow chains are required in addition to many other states. Nevada requires steel link style tire chains." although Nevada's stance appears to have changed as of Oct. of this year per the map link above.
Well this does look like an interesting compromise. But regs and requirements vary pretty significantly here in the states. Wonder if these would pass muster as a chains alternative.In my opinion, tire socks are a much better choice. I have these for my Ampera:
Car Snow Socks | Snow Socks | Auto Sock | AutoSock UK
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Answered my own questions.
Looks to be 50 state approved per their site: http://www.autosock.us/
And here is the size you want for the stock 19" tire size: http://www.amazon.com/AutoSock-AS69...F8&refRID=0P995SKPWTNFMET1915X#productDetails
And lastly according to their FAQ: "Can I use AutoSock on roads where snow chains are required?In the U.S., most states do not regulate traction devices for cars and SUVs. Currently, Colorado has approved AutoSock for Semi-truck uses when snow chains are required in addition to many other states. Nevada requires steel link style tire chains." although Nevada's stance appears to have changed as of Oct. of this year per the map link above.
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