I hate to do this, but I have to agree with CC on this one.
You should not have to research a company to see if the ads they place in EVERY offroad mag. are true.
In my business (floor covering) if I sell a customer 1/2 pad, it better be 1/2 thick. I have several customers that do check.
The pad companies do offer cheaper pad that has a +/-, they call it "shaved" pad.
I have taken accounts from other companies that use that pad and didn't tell the customer.
It's total bullshit to advertise a tire size and be so far off.
What happened to the big 3 with their bullshit HP numbers on new cars? Didn't they get caught or lose in court and had to change ads?