My Swinger Air has decided to leak air into the oil chamber and there are no spare air seals in the country so it can't be serviced. I know its 190mm long but what do the other measurements you see like 190 x 50 mean?

Have possibly seen a Fox Float R that might fit which is 190 by 50 but how could I tell.

Forgot to say I'm doing the SDW 100 mile ride in 2 weeks, hence the panic!!

I think the measurements are eye-to-eye and stroke length.

Right, well my instruction manual for the Swinger only mentions a 190 by 50 so I guess it only comes in 50mm stroke for that eye to eye length so any shock that size would fit.

The shock I've seen comes without bushes, can these be re-used from my current shock?

Nooooooooo idea...

the manitou eyelet sizes are different from foxes....I recently replaced my fox brain shock from my 04 enduro with a swinger three way and had to do a fair bit of running around getting bits- got spacers and bushes from BETD...works a treat although can't get full rotation on the SPV lever cos of the frame...ah well.