Porsche 911 TURBO - 1975 WORSHOP, Manual

Page: 239 / 252

Technical Data
239
Tyres, rims, tracks
Tyres Wheel Rim offset Track
Summer tyres
front 235/35 ZR 19 (87Y) 8.5J x 19 H2 56 mm 1490 mm
rear 305/30 ZR 19 (102Y) XL 11J x 19 H2 51 mm 1548 mm
Winter tyres
front 235/40 R 18 91V M+S 8J x 18 H2 57 mm 1488 mm
rear 295/35 R 18 99V M+S
1)
11J x 18 H2 51 mm 1548 mm
or front 235/35 R 19 87V M+S 8.5J x 19 H2 56 mm 1490 mm
rear 295/30 R 19 100V XL M+S
1)
11J x 19 H2 51 mm 1548 mm
The load capacity coefficient (e.g. “91”) and maximum speed code letter (e.g. “Y”) for permitted top speed are
minimum requirements.
When fitting new tyres or changing tyres: Please observe the chapter “TYRES AND WHEELS” on page 199.
Tyre and rim sizes
Approval for tyre and rim sizes is granted on the basis of extensive testing.
Your Porsche partner will be pleased to advise you about the current approval status.
If you refit your vehicle with tyres and/or wheels not authorised by Porsche, this may have a dangerous effect
on driving stability.
Snow chains
Snow chain clearance can only be guaranteed with the tyres marked
1)
.
Can only be mounted on the rear wheels; maximum permissible speed is 50 km/h (30 mph).
Only use Porsche-approved fine-link cross-type or edge chains.