Mercedes-Benz SL-Class 2006 Owners Manual - Manual (Page 440)

439
Technical data
Rims and tires
SL 55 AMG SL 55 AMG (Performance Package*)
SL 65 AMG
Front axle:
Rims (light alloy) 8.5 J x 18 8.5 J x 19 EH2
Wheel offset 1.18 in (30 mm) 1.18 in (30 mm)
Summer tires 1
1 Radial-ply tires
255/40 ZR18 95Y 255/35 ZR19 96Y XL (Extra Load)
Rear axle:
Rims (light alloy) 9.5 J x 18 9.5 J x 19 EH2
Wheel offset 1.30 in (33 mm) 1.22 in (31 mm)
Summer tires 1,2
2 Must not be used with snow chains.
285/35 ZR18 97Y 285/30 ZR19 98Y XL (Extra Load)