I notice the more expensive carriers tighten around the towball with a lever whereas the cheaper 9503 you need to use a spanner – how easy is this and how wobble-free is the rack?
Really is a one minute job to lift on, run bolt up finger tight, then 3 or 4 nips with big spanner. Very wobble free, must be a sort of elyptical shape too, as it self centres as well.
As above, I have a 9503, but don’t even try to put 3 bikes on it nowadays, too much faffing, not well enough spaced for 3 bikes, especially 3 big bolt through full sussers. I keep meaning to modify it by spacing the bike carriers an inch further apart, just no got round to it.