The very best advice I can offer is to visit the Parcelforce website.
Without seeing, weighing and measuring the bike, other members can only guess.
Personally, although it will mean fewer potential buyers, I would think about selling an expensive bike as collection only.
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)
