The old baskets squeaked on the pannier rack. I have no idea if the new ones will – I have just installed anti-squeak tubing 😉
I bought a couple of metres of dark grey aquarium hose pipe and slit it lengthwise with a pair of scissors.
Then I cut it to lengths that fit on the thicker metal bars on the top and side of the rack, cutting out little half circles to make them lie flat past the thinner bars.



Later: I begged some miniature cable ties off my neighbour and tied one around each piece of tubing (not pictured). They stayed on pretty well on their own, but I don’t expect them to stand up to a month of mistreatment without attempted mutiny.