Quote Originally Posted by whitey56 View Post
My D2a has 235/70 on and shows 825 to 830mm at the wheel arch, my next set of tyres will be slightly larger to reduce the speedo error, that’s at about 4 kmh slow now.
My D1 runs 255/70 16's and speedo is just about spot on perfect, but odo was about 8% less indicated than actual, and now works out to 6% error(less on odo than actual).
But speedo is still about the same as before. I've now done near on 50K klms on those 255/70 tyres.

Brother's D2 runs 245/75 16's. Speed error is about 4km/h, but shows lower than actual. have to keep reminding self about this to not get caught.
Haven't worked out his odo error difference.

Need to get him one of those Hunter Di speed correctors one day.

Yet to measure the height of my D1(or D2).
D1 has a GME aerial which is my 'carpark' guide.
D2 has SLS, has been sitting for just over 12months, and looks like it's loaded with a ton of stuff. So currently it's about about 1.8m to the roofline