Had a search for this topic but unsuccessful (using phone etc) 

 

Bit confused about wheel sizes and brake disc sizes. Of assumed that all FL vrs 245s have the bigger diameter discs and vented rears. I'm presuming that initially it was offered with 18" wheels, with the 19" telephone dial ones being a cost option, but at some point were these made standard? It's not clear when reading reviews online, My 245 has 18" wheels, but presuming has the bigger brakes. 

Pretty sure 18" Gemini were standard on the FL vRS.

 

There were a couple of special edition 245's which got a few extra's including 19" xtreme alloys as standard, namely the '245 edition' and 'challenge edition'.

 

As for brakes, I think all 245's got the same:

- 340x30 vented (PR-1LG) fronts

- 310x22 vented (PR-1KW) rears

 

Plenty of info in this thread: 

 

My 245 has the 18" wheels, although annoyingly when i put my reg into blackcircles to get tyre quotes it only offers 19" option, so i have to arse about putting tyre sizes in.

My previous vrs had the 19" wheels, I prefer the ride and potential lower cost of these 18s. 

This may help.

https://www.evo.co.uk/skoda/octavia-vrs/19473/skoda-octavia-vrs-245-review-the-hottest-octavia-gets-hotter

 

However specs do chop and change pretty much every year, sometimes more than once a year.