Hi guys, I am currently facing a true challenge regarding formal evidence on the permissible wheel sizes for my 2005 Scaglietti following the regular technical control in Switzerland. When I bought the car 3 years ago it came with the original Challenge wheels in 8x20" and 10x20" (so I thought), in fact the rear wheels were 21". No-one noticed until recently at the technical control, where it was confirmed that this would not be a permissible wheel size, unless I could bring evidence to prove otherwise. My mechanic who knows the car really well has already requested formal type approval with the manufacturer (BBS) and various distributors in Switzerland however only received negative feedback (reflecting that there is no approval for 21" on a Scaglietti). Has anyone made a similar experience or knows where to locate the respective type approvals? Thanks ahead for any indication. Regards, Dennis Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
Dennis- Never heard of those wheels in 21" and they were never a Ferrari option on the 612 or 599. The 20" wheels were not even an option in 2005. They showed up later. When the HGTS and HGTC options were introduced, only 19" wheels were available initially. 612 Five Spoke F 18”, R 19”, 5 X 114.3 mm Front 8J X 18 ET 43.5 mm , R 10J X 19 ET 51.1 mm Five Spoke Modulars 19”, 5 X 114.3 mm Front 8J X 19 ET 43.5 mm, Rear 10J X 19 ET 51.1 mm Challenge Monolithic 20”, 5 X 114.3 mm Front 8J X 20 ET 43.5 mm, Rear 10J X 20 ET 51.1 mm 599/HGTE/SA Aperta Five Spoke F 19”, R 20”, 5 X 114.3 mm Front 8J X 19 ET 43.5 mm, Rear 11J X 20 ET 63.8 mm Challenge Monolithic 20”, 5 X 114.3 mm Front 8J X 20 ET 43.5 mm, Rear 11J X 20 ET 63.8 mm HGTE/SA Aperta Five Spoke 20”, 5 X 114.3 mm Front 8.5J X 20 ET 40 mm, Rear 11J X 20 ET 63.8 mm 599 GTO Five V/Ten Spoke 20”, 5 X 114.3 mm Front 9.5J x 20” ET 38.1 mm, Rear 11.5J x 20” ET 63.8 mm
