Thread: New Mx250 Build
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Old 6th January 2014, 17:44
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Quote:
Originally Posted by TheLaughingCow View Post
I believe the overall diameter of the wheels i. A shade under 27 inches
the suspension is completely standard, before I fitted the wheels I was planning on lowering, looking at it now, that won't be possible or necessary.

Running wheels and tyres this big will cause the speedometer to be fairly inaccurate ( about 7mph at 60mph) other than that it's just a matter of clearance
I'm fitting a double din Sat nav stereo which will help me keep an eye on my speed
You might find your speedo is actually more accurate with the larger tyres. Most speedos over read by about 10% so you're typically travelling at about 54mph when it reads 60.

You can check how much difference your tyres will make to the speedo with this handy tool -

http://www.kouki.co.uk/utilities/vis...ize-calculator

Just enter your original and new tyre sizes and it'll tell you the difference. So long as the error isn't much more than 10% slower than actual speed you should be fine. Check it against your sat nav speed and you might be surprised.
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