I'm looking for some advice and opinions on combining Tecnocast Corsia 17x7 ET47 wheels and Brembo calipers.

Basically I've got a 97 Classic with Brembo brakes and have picked up these wheels which I really like and want to refurbish and use. To clear the front caliper I've very roughly worked out that I'd need at the very least a 20mm spacer, 25mm probably the safest option. I bolted it all up out in the shed earlier with a spare disc and caliper to see what's what.







What's your opinion on using spacers as thick as this and am I likely to have issues with the tyres hitting the edge of the wings as the wheels have moved out further than normal?

Another thing I though about. It appears they will clear rear Brembos without spacers. Is it bad practice and would it look just plain stupid without spacers of some sort on the rear?

 

I should add that I'll be using Prodrive Bilstein WR97/98 struts with Eibach P11L springs.

 

Anyone any experience with 25mm spacers?