Ford Focus Owner's Handbook Manual page 210

Except convertible, Focus ST and Focus RS
Up to 160 km/h (100 mph)
Variant
All
All
All
Vehicles with a
petrol engine
Vehicles with a
diesel engine
1
Only fit snow chains to specified tyres.
Continuous speed in excess of 160 km/h (100 mph)
Variant
All
All
All
All
Wheels and tyres
Tyre size Front
bar (psi)
1
2.1 (31)
195/65 R 15
205/50 R 17 2.3 (33)
225/40 R 18 2.3 (33)
1
2.1 (31)
205/55 R 16
1
2.3 (33)
205/55 R 16
Tyre size Front
bar (psi)
195/65 R 15 2.4 (35)
205/55 R 16 2.4 (35)
205/50 R 17 2.5 (36
225/40 R 18 2.5 (36
208
Normal load
Rear
bar (psi)
2.3 (33)
2.3 (33)
2.3 (33)
2.3 (33)
2.3 (33)
Normal load
Rear
bar (psi)
2.3 (33)
2.3 (33)
2.3 (33)
2.3 (33)
Full load
Front Rear
bar (psi) bar (psi)
2.4 (35) 2.8 (41)
2.5 (36) 2.8 (41)
2.5 (36) 2.8 (41)
2.4 (35) 2.8 (41)
2.4 (35) 2.8 (41)
Full load
Front Rear
bar (psi) bar (psi)
2.6 (38) 3 (44)
2.6 (38) 3 (44)
2.7 (39) 3 (44)
2.7 (39) 3 (44)