I wish they were available in 15" sizes (31,32,33). Anyone know if they will be in the future? Bretfraz?
In this Hunter white paper they tested five GSP9700s against several Akron Standard tire uniformity machines. The correlation graphs show it was pretty good.
Thanks for the tips about the machine not being perfect, and the GSP9712.
Despite not being perfect, the GSP9700/12 seems to be the best widely available balancing machine, and will find vibration problems other machines simply cannot. My own limited experience, plus other friends who have used it corroborates this. We had vibration problems various shops couldn't fix, then went to shops with a GSP9700. Every time it either fixed the problem or pin-pointed the cause.
I don't like vibrations, and over the years it has been incredibly frustrating to encounter allegedly non-fixable problems. This machine has changed everything for me, so that's why I tell people about it.
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