Put it in first or second gear and see how high the RPMs go before it stops increasing. That's the easy way. If you get scared before it stops, you know it isn't low enough for you.
There are other ways to limit RPM besides the RPM limiter tables. Even if they said 5000, that doesn't mean the engine will go that high. The way I told you to find out what it is set at is the most effective way of finding it.