Abstract: Each of a pair of wheeled ski simulators has a two-wheel truck assembly mounted to an adjacent end of an elongate simulator frame via a journal bearing sleeve. Each bearing is located at or above the base of a boat, e.g., affixed to a central part of the frame, and has an axis inclined to the length of the frame. Each journal bearing sleeve is fixed in relation to the axis about which the associated wheels rotate. A resilient mechanism is coupled between the frame and each wheel truck in parallel to the connection of the truck to the frame via its bearing sleeve.