Patent ID: 7543669

Claim:
A snowmobile comprising: a frame including a tunnel, the tunnel extending along a length of the snowmobile and having forward and rearward portions, the tunnel including: a top portion, a pair of spaced apart sidewalls, and at least the forward portion of the tunnel having generally flat interconnecting portions extending from each sidewall to the top portion, each interconnecting portion forming a first obtuse angle with the top portion and a second obtuse angle with a corresponding sidewall; an engine disposed on the frame; a drive track disposed below and supported by the tunnel and operatively connected to the engine for propulsion of the snowmobile; two skis disposed on the frame, each via a front suspension; a straddle seat disposed on the tunnel above the drive track and rearward of the engine; and a steering assembly disposed on the frame forward of the seat and operatively connected to the skis.