Wheels Sizus Maximus

The latest wheels upgrade is to a set of BBS Race wheels...
After careful measurements of my stock Fuchs 16x7/8" and my HRE-504 16x10.25" wheels, I designed a new set of 17" wheels in sizus maximums! Here are the specs:

FRONT:	17x10.5" (11.25" overall)	35mm offset	17 lbs	255/40-17 Yokohama A032R tire, 25.5 lbs
REAR:	17x11.5" (12.25" overall)	35mm offset	18 lbs	275/40-17 Yokohama A032R tire, 26.5 lbs

As for clearance issues, I initially tried out one 275mm on one front and rear wheel each (pictured above). The front fits just fine. I'm going to have to fully roll the fenders instead of two 6" sections at 10/2 o'clock. Also the inside of the tire rubs upon the square metal tab that supports the brake-line. I already cut off a 1/4" corner of that tab to mount my 245/45-16 tires, so there's nothing else I could cut off. If there was a way to limit the steering, I'd like to reduce the steering stop a little. Also at the very front, the tire rubs on the fender liner on the inside at close to opposite lock. It also rubs on the outside at anything more than 35-degrees steering angle on the tires. That's because of the 1" taller diameter of the 275/40-17 tire compared to stock. None of these clearance issues would post a problem at the track since they only occur at extreme steering angles like in parallel parking or U-turns.

On the rear, no problem with the clearances. Again, I will have to roll the entire top of the fender. Earlier, I had to strap the parking-brake cable to the spring-plate since it was rubbing on the rim. That clearance has now been taken down to 0.25". Under full compression, the tire would actually rubs on the inner wall of the fender about 6" ahead of the upper shock-mount bolt and about mid-way down the outside sidewall. So looks like a 275mm rear tire is the maximum that'll fit. There's actually room for a 295/35-17 tire if anyone makes such a size. And why not I wonder?

Once I get a wide-body fender upgrade, I'll be able to use a 275/315mm tire combo!