Laser Road Base UK



I'm struggling to find a new road base in the UK. Preferably not the wide one (as they are just too wide). Does anyone have any links as I'm struggling to find anything?

Where in the UK, or anywhere else, has a trailer been called a Road Base? This is new to me....
Pretty obvious to me. Road base is the trailer part of a combi trailer. You load the boat and trolley (dolly to you foreigners) on to the base trailer. It normally has just a roller at the back that the trolley slides up
All the Laser road bases I have come across have been similar in width. Please explain the problem further? Our club buys all its's trolleys and trailers from this company. Here is the Laser base unit.