i have one of those cycle carriers on mine which works really well for four bikes off a tow bar extension held on by two replacement bolts for the standard ones that come with the orginal tow bar. Went from kent to hadrians wall etc with no problems but used a trailer light system on the back as it obscures the rear number plate. Easy to get the bikes off but access to the engine bay is difficult (but achievable) for access to my hookup.I phoyos the bikes as i put each one on with my phone then used this for the rest of the holiday as a template for putting on and taking off. This worked very well. I have a two bike one on the rear screen that I kept on for the duration aswell but you cant obviously use both at the same time lol. hope this helps.