I have just got the Topeak Modula™ Cage XL, and must say: this cage is huge
I ordered it to fit my 1 litter fuel bottle but it seems that this cage is much much bigger
I thought that the hight of the bottle can be changed all the way, so you can fit all hight of bottles, but nope. It will change about 5 cm.
The base of this bottle cage is wide, so it is just for 1.5 litter bottles or maybe 2 litters.
Take care that I have 58 size frame and it can fit but smaller frames should take care and measure in advance to check for clearance.
I have shipped back the cages, and looking for a fuel bottle cage.