Will this fit??? TSW

If im lowered on Prokits with a 2010 mazda 3 hatch. What is the maximum backspacing that is allowed for rim fitment. I am looking to put these on this summer.

http://www.tsw.com/alloy_wheels_nurburgring.php

I am looking to run them 19x8.5 and with 225x35x19 tires. hoping there is enough backspace to fit. I couldnt find to much info on people running this setup.

thanks in advance.

Am I missing something? Doesn't list the offset on the website....

Inventory shows that +20 and +45 are available.

oh sorry ya it would be +45 offset...

this is what i found....

http://mazdafitment.com/forums/showthread.php?t=1420

looks like there is a 19x8 +45 available.