I loved Citroen cars, starting with the Deeeeee-Esssssse, of which I had several timeless DS starting with one I scored from the budget of a film I produced when I was still a student, and when I had the money for it, several SM, which I still consider the most pleasing grand tourer ever made, but it was so unreliable, you needed three to have one to drive while the other two were in the garage, and they each cost more than a Rolls (who licensed their self-leveling rear suspension). All the same, when it ran, the SM was such a cosseting, effortlessly capable car, I several times set ton-up averages overnight from London to Nardo in the boot of Italy without the passengers ever noticing something extraordinary was happening. When we returned from Australia, my wife was pregnant, and the Volvo I'd ordered to keep her and the child safe took months to be delivered, during which time I drove a GS that was on the lot of the used car dealer nearest the station at Cambridge, and I was sorry to give it back to the dealer when the wretchedly crude Volvo was delivered. Not that a Citroen couldn't also be crude: the DS, to the end, ran on an embarrassing tractor engine with pre-war roots, the Maserati engine in the SM was crudely cut down to a V6 from the known-reliable V8 (I had V8 Maserati too, in all three the then-current sizes, all bought secondhand, and you just couldn't kill them), a botch that ruined the car's reputation, and Citroen didn't have the money to develop the rotary GS, of which the one I drove via a day's detour to its final rest in a museum, a thrashed prototype with half a million kilometers on it, was what enthusiasts always expected a small English sports car to be--and were always disappointed, while at Citroen the French got it right more often than not. The whole of any Citroen, starting with the humble 2CV, was always at least twice the compass of its component parts, and oftentimes more, which was just as well because their ever-parlous finances dictated that models had to be kept in production for a very long time.

Can you picture the bicycle Citroen would have designed in the full flower of its technical imagination, running for the four decades from the Traction Avant in 1934 through the  2CV, DS and SM to the CX in 1974?

Thanks all.

How about the PAS sensor. Has anyone got it to work on a Thorn using either the left or right side version?

Rather than modifying the fork, I'd be inclined to try filing flats on two sides of the axle, where it protrudes past the bearing locknuts. If you measured carefully to make sure they were in the same plane side-to-side, I think removal of only the threads (0.5mm each side) would fir the dropouts while still leaving adequate full threading for locknuts.

Best, Dan.

On my wife’s hybrid I had to file the front fork dropout to 10mm to take the hub motor axle.   Could you find an older / cheaper fork?

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As in title. Seller is very keen.