Different Profile Front Vs Back?

[NZBen]

I am thinking about increasing my wall thickness from 40 to 45. At the moment I need new rears, so was thinking about changing them to 45, then when my fronts are gone I would change them too. My question is... will running different profiles have issues with the dsc abs etc?

Any suggestions or tyres that really hook up and arent too bad in the wet?

[arronm]

What car

[NZBen]

Sorry... G6Et, 320rwkw std rims. 245/40/18 currently. I figure the 45 might give a better ride, slightly better gearing etc.

[NZBen]

Am thinking abt invos

[hawlass]

45 profile new rears combined with worn 40 profile fronts may cause issues with the dsc and tc.

Thought about chucking the fronts on tick if need be and getting them all at once?

Hyper in penrose, Auckland are good to deal with and have tight prices- they are moving real soon so it may be a good chance to screw them down for a good deal- I got my invos through them.

[(Locky)]

Mines a BFII, but I was in a similar position

Chucked 225/40/19 on the front and still have the 235/35/19 (bit more streched too) on the rear and no issues so far
Will chuck some 40's on them too when they die

[08G6ET]

I'm currently running 245/35R19 on the front and 245/40R19 on the rear of my G6ET. Completely stock, bar K&N air filter.

I did get the tyre profile updated on the car via FORD IDS software as the my speedo was showing 80km/hr and actual road speed was 83km/hr. It's been like this for almost 6 months now.

The speedo reads from the rear right wheel I think.

No issues with ABS or traction control so far.