Colin Rosenstiel ) gurgled happily, sounding much like
they were saying :

Isn't it unladen weights that determine weight limits?

No. Normally weight restrictions are based on MAM - Maximum
Authorised Mass.

Which is what for a bendy?

Merc reckon the "Statutory maximum gross weight" is 28 tons...

http://www2.mercedes-
benz.co.uk/content/unitedkingdom/mpc/mpc_unitedkingdom_website/en/home_mpc/
buses/home/products/new_buses/citaro/citaro_g_18m/technical_data.html

http://tinyurl.com/cvpc5