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Hey there and no worries at all, completely understand.
I've attached the official geo below.
I'm basically 183cm. Works out at about a 56/max 57 TT as the ST is slack-ish at 72.5 so you don't need any/much layback. I rode it with a 100mm stem absolutely fine. Hope that helps a bit and ask away with anything. Cheers. Thttps://support.planetx.co.uk/hc/en-gb/articles/360018494540-Space-Chicken-Sizing-and-Geometry-
Sorry I went quiet on this - challenging week. Can't figure the sizing on this - how tall are you (assuming the saddle is set up for you)?