Opel Vectra/Calibra cars, depending on the model and configuration, can be equipped with various rims and tires.
Discs have a pressing depth of 49 mm (pressing depth is the distance from the plane of symmetry of the wheel to the contact surface of the wheel disk to the brake disk).
The centering of the disk on the hub is carried out along the central hole. To protect against corrosion, the centering surface of the disc must be lubricated with bearing grease.
All rims have lugs on the rim that prevent the tubeless tire from coming off the rim during tight turns.
Attention! Wheel bolts for both conventional and light alloy wheels have the same parameters: thread - M12x1.5, wrench size - 17 mm, tightening torque - 110 Nm.
The spare tire pressure must match the maximum rear tire pressure.
All inflation pressures are for cold tires. Do not reduce the pressure, which increases by 0.2-0.4 bar as a result of the heating of the tires while driving.
The pressure in winter tires must be higher than the value indicated in the table (by 0.3 bar or more). Follow the winter tire manufacturer's recommendations.
With a sporty driving style, it is recommended to increase the pressure in all tires by 0.3 bar.
When towing a trailer, increase tire pressure to the value given in column "full load".
If other than factory rims are fitted, retract the long wheel valves inwards when using flat wheel covers. Make sure that there is sufficient air flow to the brakes through the ventilation slots in the discs.
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