Join Date: Sep 2013
Location: South Devon
My Motorhome: Bessacarr E725
Thanked 161 Times in 140 Posts
By the time you add the weight of the rack, you are talking about 200kg.
The 544 appears to have quite a long rear overhang already, so you'll need to find out if your rear axle will take that loading.
I don't know the payload of the 544, but 200kg will knock a big hole in that.
Most people with 3500kg limit look for scooters around 100kg, and the calculations still need to be done. A visit to the weighbridge will be in order, too.
I'm daft and proud of it.