When I upgraded my 82 UR to 8J rims (82 UR 6J standard) I put 225/50 x 15 Fuldas on without any problems (I did roll the rear wheelarch but then all the 84 model year UR;s which came with 8J as standard had this done at the factory).
For info the original tyre size on the 82 UR was a 205/60 x 15 so if I used 215/50 x 15 as audi secified for the 84 model year the rolling radius would have been even further out than the 225/50 x 15 that I used.
|