Any 17 inch wheel will be needed to clear the front brakes of a 135i. At first I used BMW's euro space saver spare tire. But the very first time I used one... (in the rain) it was quite scarry how much the rear end wiggled around just going straight down the autobahn at 80 to 100 kph. That's when I went with a full size spare - from an e46 330ci. So happy now.
Spare Tires?
http://www.1addicts.com/forums/showp...3&postcount=27
Spare Tires?
http://www.1addicts.com/forums/showp...1&postcount=63