Will you be using it solo or with someone else? The tents I use for solo bike touring are 1.1 and 1.8 kg, non-freestanding. I usually take the lighter one even though it doesn't have enough headroom for me to sit up. Also have a 2.3 kg freestanding tent but haven't used it for cycle touring.

2.5kg seems a little on the high side to me if you'll be using it solo. I'm surprised that it weighs that much since usually non-freestanding designs are lighter.