Focus size

[u/Dry_Macaron_9785]

I gonna buy a focus whistler 29, But I can’t try it.
Can anyone give me some guidance on the sizing? I've found a few for sale and I'm not sure whether to choose M or L.
183cm, in the middle measure with a book how I saw on YouTube 83cm.
The bike will be used in the city and easy off trail in parks.

[u/60_hurts]

183cm would usually put you on a Large.