Extended Wheel Arch kit with 19's - Front Spacer Question

[scz4]

Afternoon all,

So I've bought a genuine extended wheel arch kit from BMW for my E70. I still plan to run my staggered OEM 19's (255 front, 285 rear). Looking online, I know I'll need 30mm spacers at the rear to compensate and match the 20" setup.

Will 20mm spacers at the front suffice? That's what I'm unsure of.

Will go for H&R DRA type, although they don't seem to do 20mm in DRA
http://www.dcperformance.co.uk/uprat...MW/x5.html#top

Would 35mm spacers for the rear be safe? I ran spacers on my E53 and E61, but only 20mm, never gone above that.

DRA safer than DR and extended wheel bolts?


Thanks in advance.

Graeme