15" wheels & tires for my e30?

[Topper]

Hey Guys,
I'm going to order a set of Ronal LS wheels for my 91 325i becuase I love the factory BBS style look and proper fit available without spacers.
Anyway, they are available in offsets ranging from 9-25mm. Does anyone know the proper offset? I thinking it is 20mm but I want to know for sure before I order them.
Also what would be the best tire size? The ronal website shows an e30 with 205/55r15 on it. That seemed like an odd size to me. Anyone have first hand experience with this?
Here's the URL if you want to check out the wheels: http://www.ronalusa.com/wheels/ls.html

Thanks in advance...
Dave

 

[rjp325i]

The 205-55-15 is the factory tire size for the E30 M3. That size works well with all E30s. You can also go larger if you wish but the price goes up too depending on rim size and tire profile/size.