Outer Limits 4x4 Board

in my mk my speedo is out reaaly bad.. from 10km to 60km it is ten kmh advanced? (im doing 60 by the speedo and 50 by the gps). and when im doing 80 its doing 65 and to do 100 i have to do 120.. what could be causing this. as this is my daily driver i really need the help

first i would call 000 then just acept its out due to larger tyres then keep using you navman or buy smaller wheels....

then call 000 to tell them emergency avoided.....

sounds like you need to put bigger tyres back on or call a spedo expert and get it adjusted or look at your gps for speed

ive got standard tyres on it. i want to put another speedo in it but none of the wreckers have mk speedos they only have mq.. they are different as i found out hte hard way