Skoda Octavia Owner's Manual page 212

Octavia RS
Rim size Impression depth D
6J x 17
a)
6J x 17
a)
a)
Only fit snow chains with links and locks not larger than 12 mm.
Remove the full wheel trims before fitting the snow chains
CAUTION
The chains must be removed when driving on snow-free roads. They would
otherwise cause loss of performance and damage the tyres.
210
General Maintenance
Tyre size
45 mm 205/50 R17
48 mm 205/50 R17
» page 213.