Tow bar mounted bike racks

Only to add that a check should be made on the weight carried back axle is not over loaded.

   The rear axle acts as a pivot, and the weight behind the axle lifts the front wheels. The weight “ lost” by the front wheels is carried on the back wheels increasing the weight on the axle.

if the vehicle has a long overhang, this can make quite a difference in loading and handling.

Any weight ( tow bar + bike rack+ bikes) is not dead weight when moving, but a pendulum.   Very roughly 100 kg dead weigh might lift the front up by the equivalent of 20 kg, this is transferred back to rear axle. So the real load is 120 kg.  

useful read   https://www.watling-towbars.co.uk/motorhome_axle_loads.html

BtW  Watling tow bar made our tow bar, and it has stood the rest of time with racks and trailers.

A search on the 

rgds

I use a Thule EasyFold XT2 towbar rack for my ebike. Folds away quite neatly and can be left in the boot of the car when I get to where I want to cycle. 

We have Thule kit for towbar mounting on our PVC; Velocompact and Easybase/Backup Box.Ground clearance not a problem with either and they do not bounce.Bear in mind that Thule are 7pin for electrics,so you may need to purchase an adaptor if the vehicle has 16pin fitted.No big deal,as it all works OK with adaptor in our experience.

Halfords is the place for the 13 pin to7pin adaptors

JVB66 is correct 7/13 pin not 16 pin.Slept badly last night as arthritis playing up -bit fuzzy headed this am😕.

Our Velocompact came with the 7/13 pin adapter. It was loose in the box, not fitted and held in the bracket on the frame.

.... though there are many places that are much cheaper than Halfords.

Not that are just walk.in

Ours was chucked in when we bought our trailer , and as they did not have the size trailer the Web site said they had in stock, we got a bigger one for the same price