I never knew they did custom frames, interested in the details, are the chain stays similar length? What fork are you running?
So this is based on the Signal Ti but IIRC ( I should really know this ! ) I asked for 1 505mm reach, same ST length as the XL, sliding dropouts and clearance for a 3” 29er tyre on a 50mm rim – so basically the largest tyre and rim combo at the time.
The plan was that I could run up to a 3” tyre SS but could drop in some non plus wheels with the dropouts moved forward and have a chain stay length similar/the same as the std Signal – again IITC its 420 and up to 445mm.
To be honest in the time I’ve had it (about 17 months) all I have changed is the stem!
Fork is a Yari (29 plus) running a Ramp control and a charger 2.1 damper.
As others have said its not a massive XL in standard form. I run a 150mm dropper and I couldn’t fit a 170mm due to the kink in the ST. No major gripe as the saddle in its lowest position is well out of the way for shedding the gnar that Suffolk has to offer ……