hi folks

I am thinking about putting 225/40/18 DJ388's on but have done the tyre calculator and found out my speedo will need adjusted is this an easy process and how much, any ideas?:confused:

see picture for style

why not use different sized tyres?

just looked on a tyre size calculator and they are 0.5mph out at 60mph so i really wouldn't worry about it.

cheers m8, will i have to roll the arches because of the width?

I have RS6 wheels with the same size tyres 225/40/18 and have no clearance issue's.

Hope that helps.

thanks folks

I have exactly this size fitted to my Octy vRS, the speedo reads at 6% Fast i.e 63 is 60 on the RA GPS, speedo's are generally within a tolerance zone anyway.