I have read all the posts about it on here, and also read the owners manual.. 
  
But I wonder if anyone has tried these cables on a 2011 Edge Limited AWD with 245/50/20 OEM tires? 
  
SCC Super Z6 
Treadface: 1.20'' / 31mm (X) 
Sidewall: 0.25" / 6.3mm (Y) 
My link 
  
The website says: 
Some owner's manuals state that certain tire sizes do not provide enough clearance to accomodate winter traction products. Frequently, car manufacturers make these statements because a vehicle has less clearance available than Class "S requires. The fact is, many of these vehicles can use one of SCC's winter traction products.