Yeah, the non-R's send out an electromagnetic pulse or a frequency or something, and can screw up helmet radios and anything nearby. On some particular sleds it will effect the drive-ability of the machine because it interfere's with the electrical system of the engine and won't run properly. Try the B9ES...if your sleds runs good with no problems, than I see no reason you can't use them. IMO.
Right on Exciter Man. Nothing worse than trying to watch a DVD on the trail and getting the FUZZ... Wassup with mean people?? Just got back from the trails and everyone was nice even at the bars.. Get on the forum and some dude is complaining about Smartass Comments????? Whatever!!!
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