How high can WR revs?

I have one gearing calculator and I need max revs for the bike and max power on xxxx revs. I'm hearing that YZ rev up to 13000 :) Is it the same with us?

Do you fellas have some info on the subject?

A WR426's rev limiter is set at 10500 RPM. YZ426 at 11500 RPM. The 250 is limited at 13500 RPM.

A well tuned WR426 makes 50+HP @ 9000 RPM. Peak torque is 43.1Nm @ 7500 RPM (stock).

Check out this Dutch Yamaha site's WR426F specs. (in french)

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