Paul-R wrote:That last photo is very informative as it answers my question of how they fit on to a tow-bar.
That one of Franklins is not at all like mine, that one also looks quite primative in the bike holding area. The car lights are also getting quite well hidden too.
Mine sits on the tow ball, it can therefore be used on any tow bar, be it a bolt or, a swan neck or a removable.
All you do is sit the cup on the towbar, then tighten the clamp up with a large screw like which which comes with a spanner to get it extra tight. It grabs the ball and sits extremely secure - I have actually stood on the back of the rack! It it totally secure and wont twist sideways. I have confidence driving at my normal speeds around corners with this and 3 bikes on, the strap on ones required careful driving to avoid alarming amounts of movement. Ive also heard stories of those falling off, which is best avoided!
I have a lock which is made by Thule, this covers the screw and means the rack can not be removed, or easily anyway. I have left the car parked all over with the rack on while out cycling and never had any bother.
That towbar one of Franklins looks ok, though I dont like the attachment which needs to be fitted to the rear of the car, a towbar is ugly enough.