| 主权项 |
1. A snowmobile comprising:
a chassis defining a tunnel; a pair of runners steerably secured to a front portion of the chassis; a skid frame mounted to the chassis below the tunnel, the skid frame comprising a front idler wheel, a rear idler wheel, and a skid surface, the skid surface having a lower portion extending along the longitudinal direction along a major extent of the skid surface in the longitudinal direction; and a track encircling the skid frame, the tunnel defining a recess having a width sized to receive the track, the skid surface positioned over a center of the track such that a major portion of the track longitudinally coextensive with the skid surface has first and second unsupported lateral portions on either side of the skid surface, the first and second unsupported lateral portions each extending in a lateral direction transverse to the longitudinal direction from an edge of the skid surface to an outermost edge of the track and having an extent in the transverse direction on one side of the track of at least 25 percent of a width of the track, wherein the first and second unsupported lateral portions extend longitudinally from the front idler wheel to the rear idler wheel. |
