I've been trying without success to find a tire shop in Portland that has Road Force Elite and a Haweka adapter. I called ten shops today and got a range of answers from "we have no idea what that is" to "We have one but you don't need it." In all honesty, in ten places I called, not a single one said they that had it and thought I would need it. Which is discouraging, because I've read in this forum and others that it is required to balance the tires correctly. I've had the tires balanced on this car three times now. Twice from discount tire and once from Les Schwab, and it still has a wobble past 55mph. Can anyone tell me if there is a shop near Portland, OR that has the adapter and knows how to use it? I would just at least like to have it done correctly one time so I can move on to other potential issues.