The Fox Float X Rear Air Shock 230 X 65 from a 2025 Trek slash. Shock in good visual condition, all dials work as expected but it has some cavitation (squelch noise when bike is pushed down quickly) so it could benefit from a service for this reason, I have listed it as spare or repair. It could be ridden as is if the noise doesn’t bother you. I had another shock of the same size so swapped it over rather than sending off to be serviced. Any questions, please ask.