Setting up the WR 450 computer

On my 09 WR 450, what do I put in the computer for tire size...Does it come set stock or do I have to calibrate like a new bicycle computer....And If I do have to put the tire size, does anyone already know the magic number....


As far as I know the speedometer is calibrated for the OEM front tyre when new.

Like any other bike or car unit it won't be perfectly accurate, it will undoubtedly read slighty faster than the actual speed.

ie. if it indicates 40mph you will actually be doing about 37mph.


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