In reply to TobyA:
We've got a selection of roof mounts and rear carriers. On a daily basis, the rear carrier gets used the most because it's easiest to fit and remove. Roof bars and racks are a PIA to fit and remove.
The high mounted rear carrier is troublesome – it’s OK for a single road bike, but if you put two mountain bikes on it the flipping thing is an air dam and fuel consumption rockets. If you’re going to go any distance, you need a low mounted rack which holds the bikes below the roof line – and a tow bar mounted one is best in this regard. Low mounts mean you’re probably going to need a light bar of some sort.
Roof mounts get around the faff of lights and number plate, aren’t too bad on fuel and mean you can still get to things in the boot. Beware car park barriers though. The bike racks will last for ever and transfer from car to car. We’ve got some flash ones and some cheapies – and both struggle to hold the massive down tube on one of the bikes securely and fat tyres are a bit of a problem.
Next time, I’d probably go for a Saris thingy.
Top tip for bikes on the back – work out your loading plan. Get an old karrimat and cut some holes so that you can slide it onto the rack after the first bike. Then fit the next bike and cut the superfluous mat away. Draw your loading plan onto the mat with a marker. Use spare mat to make extra pads for the first bike where it touches the rack.
The boot rack also has a lock – a big padlock and a thin cable with a plate that you shut in a door – if the whole things falls off, at least it will follow us down the road instead of taking out the car behind