I'm having a heated discussion with somebody about rear tire warmers specifically. He believes that because a 180/190 tire warmer will fit onto a 160 rear tire, you should not bother to buy 150/160 tire warmers. I believe that because you will have extra material hanging off the edge of the tires, you'll have exposed heating elements not in contact with the tire that may overheat and burn out the warmers. Manufacturers must be producing 2-3 different sizes for a reason, right? I'd love to hear input from the members here, many knowledgeable people in the EMRA. Thanks, Ryan.