AMP LINK Here's a little something from the McDizzy site...
The Question - We see a few threads in this BBS about the Amp Link. We don't have one. We have after market high hardness chain rollers made of a black "Delrin" like material that we have upgraded with sealed Timken bearings. Of course, the stock bearings in the after market rollers were made in CHINA--they gave up, one trip out. Anyway, get to the point. If you walk thru the campground in the beautiful Oregon Dunes, on any big 3-day weekend, you'll see dozens of ATV's that clearly show that money wa$ NO OBJECT when they were built. The very best of everything. Of these many hi-tech ATV's you'll see nary an Amp Link.
What's the deal?? Do they work or not?? Comments??
The Response - Funny thing about that... I think the technology is probably sound, that is to say - I doubt they'll get in any trouble with the law for representing the product the way they do. In theory, the devise should work as designed. It may do what its supposed to but I'll not have one on my Quad. I noticed a Dyno test of a Banshee with one of the links installed on it about a year ago. In back to back (Amp link on during dyno test, Amp link off during dyno test) runs the tests revealed a 4 HP loss at the peak and a couple of HP across the rest of the power band. HP is too hard to come by to be throwing it away with add ons like that one - it just creates too much friction.
There's so much tension of the chain and the rollers with that devise. The bearings will wear out in no time. Especially if you ride in sand or muddy conditions. I'll save my money for new chain and sprockets. I seem to have to get new ones about every 7 to 10 days of riding/racing. Maybe someone else has some specific information about the kind of riding where the link improved things.