The snowmobile of claim 15, wherein the seat assembly further comprises a plurality of backrest mounting points, and the backrest is selectively releasably attachable to at least one of the backrest mounting points.ġ8. The snowmobile of claim 15, wherein the backrest is pivotably mounted to the seat assembly and pivots between the first position, the second position, and the third position.ġ7. The snowmobile of claim 14, wherein, when in the first position, the backrest provides support for the first driver, when in the second position, the backrest provides support for the first passenger, and when in the third position, the backrest provides support for the second passenger.ġ6. The snowmobile of claim 13, wherein the frame comprises a tunnel and the seat assembly is attached to the tunnel.ġ5. The snowmobile of claim 1, wherein the seat assembly further comprises a third seat portion for a second passenger and the backrest is movable between a first position, a second position and a third position.ġ4. The snowmobile of claim 11, wherein at least one backrest mounting point is associated with the second seat position and at least one backrest mounting point is associated with the third seat position.ġ3. The snowmobile of claim 9, wherein the seat assembly further comprises a plurality of backrest mounting points, and the backrest is selectively releasably attachable to at least one of the backrest mounting points.ġ2. The snowmobile of claim 9, wherein the backrest is pivotably mounted to the seat assembly and pivots between the first position and the second position.ġ1. The snowmobile of claim 8, wherein, when in the first position, the backrest provides support for the first passenger, and when in the second position, the backrest provides support for the second passenger.ġ0. The snowmobile of claim 7, wherein the frame comprises a tunnel and the seat assembly is attached to the tunnel.ĩ. The snowmobile of claim 1, wherein the seat assembly further comprises a third seat portion for a second passenger.Ĩ. The snowmobile of claim 5, wherein at least one backrest mounting point is associated with the first seat position and at least one backrest mounting point is associated with the second seat position.ħ. The snowmobile of claim 3, wherein the seat assembly further comprises a plurality of backrest mounting points, and the backrest is selectively releasably attachable to at least one of the backrest mounting points.Ħ. The snowmobile of claim 3, wherein the backrest is pivotably mounted to the seat assembly and pivots between the first position and the second position.ĥ. The snowmobile of claim 2, wherein, when in the first position, the backrest provides support for the driver, and when in the second position, the backrest provides support for the first passenger.Ĥ. The snowmobile of claim 1, wherein the frame comprises a tunnel and the seat assembly is attached to the tunnel.ģ. A snowmobile comprising: a frame an engine disposed on the frame a drive track disposed below the frame and operatively connected to the engine for propulsion of the snowmobile a straddle seat assembly attached to the frame rearward of the engine, the straddle seat assembly comprising a first seat portion for a driver, a second seat portion for a first passenger, a backrest mounted to the seat assembly, the backrest movable between a first position and a second position two skis disposed on the frame and a steering device disposed on the frame forward of the seat assembly and operatively connected to the two skis for steering the snowmobile.Ģ. I would also add pop down wheels on the skis to facilitate turning on asphalt or hard surfaces.1. In fact, it would probably be better to introduce drive-by-wire to ease pressure on the thumb and calibrate sensitivity more adequately. We would also add the power steering of the Spyder and Can-am lineup while modifying the steering controls to improve ergonomics. Each seat (or the floor) could also be heated by using the engine’s cooling system, and fans could also divert hot air on the riders’ legs, which could be covered by an insulated blanket. The Whitefox could be introduced with a built-in ski and snowboard rack bolted on top of its upper frame. With this change, the vehicle would probably weigh less than 900 pounds. The original side-by-side was made of fiberglass, but I would instead redo the body work digitally and factory print a new body made out of plastic. We added two seats and traded the 140-horsepower, four-stroke Sea-Doo engine for an 850cc two-stroke engine by Rotax to reduce weight. We basically took an old Elite prototype (to save cost) and stretched it by three feet.
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