I use all angled backers on my ZR900 doubled in the middle and singles on the outside. On Ice at the local races I was getting way better holeshots then most guys. Some ere complaining because they just put new studs in the night before and they still couldn't hook-up. I couldn't use the template for mine so it took all day to mark the spots and stud it. But I think it was worth the time and money. I also use the tall aluminium nuts too.
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