Motorhome Rear Bike Rack Storage Box Options

[BertieandCo]

Does anyone have experience of fitting a storage box/bag to a motorhome rear bike rack? I am thinking of fitting a plastic garden storage box, i.e something by Keter. Any suggestions, within reason, would be appreciated.

 

[1967bowesj]

Look out for a used Fiamma box, bit more money than the keter garden box but up to the job, look the part lockable and waterproof