Abstract: According to one aspect of the present technology, there is provided a snowmobile having: a tunnel; a motor; at least one ski; and a drive track. At least a portion of the tunnel is formed by a heat exchanger assembly having: a front portion; a middle portion; a rear portion; a top part; and a bottom part. The bottom part defines at least one recess. The top and bottom parts define therebetween a passage formed in part by the at least one recess. A first portion of the passage is defined by the at least one recess extending longitudinally. The drive track has: a plurality of lugs; and a plurality of studs. Portions of the plurality of lugs being laterally aligned with the first portion of the passage being free of studs.

Abstract: A snowmobile has an air intake system integrated into the snowmobile body, and with air intake vents facing rearwardly towards the rider. The air intake system includes a plenum defined by a portion of the body and ducting extending within the body. The ducting is porous to allow the air input noise to be dissipated within the engine compartment. The snowmobile further comprises couplings which may be realigned to accommodate wear. A frame coupler allows multiple differently configured frame tubes to be connected to the tunnel. The chassis of the snowmobile includes a casing for receiving the gears which drive the belt.

Abstract: A snowmobile includes a chassis comprising a bulkhead and a tunnel, a front suspension coupled to bulkhead, a rear suspension coupled to the tunnel, and slide rails coupled to the rear suspension.

Abstract: A track kit for a vehicle, the track kit having two track assemblies, each track assembly featuring an endless track and a pinch wheel in contact with the external side of the endless track, the pinch wheel having a pinch wheel axle being rigidly connectable to a chassis of the vehicle.

Abstract: An exhaust system for a vehicle including a deep snow exhaust outlet defined by a driveline structural member of the vehicle. If the vehicle includes a turbo charger and an exhaust silencer, the turbocharger and the exhaust silencer are coupled together without exhaust piping therebetween.

Abstract: A snowmobile has an air intake system integrated into the snowmobile body, and with air intake vents facing rearwardly towards the rider. The air intake system includes a plenum defined by a portion of the body and ducting extending within the body. The ducting is porous to allow the air input noise to be dissipated within the engine compartment. The snowmobile further comprises couplings which may be realigned to accommodate wear. A frame coupler allows multiple differently configured frame tubes to be connected to the tunnel. The chassis of the snowmobile includes a casing for receiving the gears which drive the belt.

Abstract: The invention is related to the class of small-scale tracked transportation vehicles, which can be used for towing a person and cargo using a sledge, for example. The motorized towing vehicle comprises a frame supporting a caterpillar drive, a platform supporting an engine with a transmission, a luggage space, an assembly for connecting to the object being towed object, a control device, and an object being towed. The caterpillar drive includes a caterpillar track, a metal subframe, a driven shaft and a driving shaft with pinions, and torsion-type wheel bogie. The control device consists of a steering wheel with handles and controls. The object being towed comprises a driver's workplace. The frame consists of a platform and a rigid framework enclosing the platform along the entire perimeter, including the luggage compartment with an additional luggage space above. The design of the frame and platform is asymmetrical relative to the track because of an extension of the platform in one direction.

Abstract: A snowmobile includes a frame, at least one ski, handbars operatively coupled to the at least one ski, and an engine assembly comprising an engine and an exhaust manifold. The exhaust manifold includes at least a first inlet, a first outlet, and a second outlet. The first inlet is configured to connect to a first exhaust port. The first outlet is connected to provide exhaust received from the first inlet to a first exhaust path and the second outlet is connected to provide exhaust received from the first inlet to a second exhaust path.

Abstract: A vehicle comprises a chassis, a seat, an endless drive track, a rear suspension assembly with at least one slide rail and a substantially inextensible limiter strap extending between the chassis and the at least one slide rail, to limit separation between the at least one slide rail and the chassis. The strap holder is moveable between a first holder position and a second holder position, a position of the end of the limiter strap being different in the first strap holder position compared to the second strap holder position. A control cable is operatively connects the strap holder to a strap adjustment actuator. The strap adjustment actuator is disposed forward of the seat and is operable by a user during operation of the vehicle, the strap adjustment actuator being movable between first and second positions related to the positions of the strap holder.

Abstract: Embodiments of the present disclosure describe a snowmobile including a chassis, a tunnel, an engine, a drive track and a drivetrain. The tunnel is attached to the chassis and includes running boards located on either side of the tunnel. The engine is attached to the chassis and within an engine bay. The drivetrain is operatively connected to the engine to deliver propulsive power to the drive track, wherein the running boards extend forward alongside at least a portion of the engine bay.

Abstract: A snowmobile has a gearbox having a first shaft, a second shaft, first transmission gears mounted to the first shaft and second transmission gears mounted to the second shaft. A driven gear mounted to the first shaft engages a forward drive gear mounted to a countershaft. In a first configuration: the first shaft is coupled to the countershaft; when rotating, a driveshaft rotates in a same direction as the countershaft; and configurable portions of the countershaft and second shaft are free of gears. In a second configuration: the forward drive gear is in selective free-spin engagement with the countershaft; a reverse drive gear mounted to the configurable portion of the countershaft is in driving engagement with the countershaft; an actuator selectively transmits rotary motion from the countershaft to the gearbox; a reverse driven gear mounted to the configurable portion of the second shaft meshes with the reverse drive gear.

Abstract: A snowmobile assembly including a chassis and suspension system. The suspension system configured to allow a selected suspension travel. The snowmobile further including a cooling system assembly.

Abstract: A snowmobile tunnel stop protection system to provide protection to a tunnel from a studded endless track used on a snowmobile. The tunnel includes at least one slot formed into an undersurface of the tunnel. At least one protection rail extends from a first end to a second end and includes a plurality of holes passing through the protection rail. A plurality of fasteners are used to attach the protection rail to the tunnel where each fastener has a first fastener portion that passes through the at least one slot. Each fastener includes the first fastener portion that passes through one of the plurality of holes and a second fastener portion that couples to the corresponding first fastener portion to couple the protection rail to the slot formed in the tunnel.

Abstract: The present invention generally relates to snowmobiles. More particularly, the present invention relates to the components of a snowmobile such as the frame, skis, motor, and endless belt assembly.

Abstract: The battery-powered endless track drive motorcycle is a track cycle comprising a front track assembly, a rear track assembly, a battery, and a frame. The front and rear track assemblies use an endless track circulating around a driven sprocket, bogie sprockets, and idlers to distribute the weight of the vehicle and provide greater traction than a tire would provide. The track assemblies are driven by electric motors that receive electricity from the battery that mounted to the frame within a battery enclosure. A seat is mounted to the top of the frame. The front track assembly is steerable using handlebars and a suspension system pivotably mounted to the front of the frame.

Abstract: Embodiments of the present disclosure describe a snow vehicle, comprising an engine mounted on a frame, a drive track, a drive train operatively interconnecting the engine with the drive track for delivering propulsive power to the drive track, and exhaust system. The exhaust system is positioned within an interior of the frame of the vehicle.

Abstract: A snowmobile has a frame including a tunnel having a passage therethrough, at least one ski, an engine having an engine air inlet and an engine exhaust outlet, and a drive track operatively connected thereto and disposed at least partly below the tunnel around a rear suspension. A heat exchanger connected to the tunnel has heat exchanger engine air inlet and outlet, a cooling air inlet and a cooling air outlet fluidly connected between the cooling air inlet and the passage. A snowmobile has a pipe fluidly connected to the exhaust outlet and having first and second pipe outlets. The snowmobile further has a muffler having first and second muffler inlets and a muffler outlet, a turbocharger, first and second exhaust flow passages, and a valve disposed between the pipe and the first muffler inlet for selectively controlling the flow of exhaust gas flowing through the first exhaust flow path.

Abstract: A side panel for a vehicle having a straddle seat. The side panel has an outer surface and is configured to be connected on a side of the vehicle at least in part 5 longitudinally forward of the straddle seat and vertically lower than the straddle seat. The outer surface defines a first leg area configured to accommodate at least a portion of a leg of a driver seated on the straddle seat in a first position, and a second leg area configured to accommodate at least a portion of the leg of the driver seated on the straddle seat in a second position. The second leg area is disposed at least in part 10 longitudinally forward of the first leg area when the side panel is connected on the vehicle. A vehicle having a left and right side panel is also disclosed.

Abstract: A rear suspension assembly for a vehicle having a chassis and an endless drive track, comprising at least one suspension arm pivotally connecting to the chassis; a pair of slide rails connected to the at least one suspension arm; at least one shock absorber assembly connected to the pair of slide rails and a rail extension assembly comprising at least one extension arm having a front end pivotally connected to a rear portion of at least one of the slide rails about a pivot axis, the at least one extension arm being pivotable between a raised position and a lowered position with respect to the pair of slide rails about the pivot axis, at least one rear idler wheel rotationally connected the at least one extension arm, and at least one biasing member biasing the at least one extension arm toward the raised position.

Abstract: A snowmobile includes a frame having side walls and a support platform. The side walls cooperate with the support platform to define a tunnel. The snowmobile further includes an endless belt assembly supported by the frame, a motor supported by the frame, and a running board removably coupled to the tunnel.

Abstract: A snowmobile includes a frame, a motor, an endless track and a straddle seat. A left and a right footrest are each connected to the frame extend laterally outwardly therefrom. The footrests extend generally horizontally and are disposed vertically lower than the straddle seat for supporting a left foot of the driver. The left footrest is disposed on a left side of the snowmobile and the right footrest is disposed on a right side thereof. A left toe hold disposed above the left footrest is supported at an inner portion thereof and extends laterally outwardly therefrom to an outer portion thereof, the outer portion of the left toe hold being freely suspended. A right toe hold disposed above the right footrest is supported at an inner portion thereof and extending laterally outwardly therefrom to an outer portion thereof, the outer portion of the right toe hold being freely suspended.

Abstract: A centerless wheel assembly may include a centerless rim configured to rotate about a point. The centerless wheel assembly may also include a centerless flywheel that may be configured to indirectly couple with the centerless rim and to rotate about a point. The centerless wheel assembly may additionally include a device for rotating the centerless rim in a first direction and in a second direction. The centerless wheel assembly may also include a one-way bearing that may be disposed between the centerless rim and the centerless flywheel. The one-way bearing may be positioned such that as the centerless rim may rotate in the first direction, the centerless flywheel may be caused to rotate in the first direction and as the centerless rim may rotate in the second direction, the centerless flywheel may not be caused to rotate.

Abstract: There is provided a snowmobile that has a frame having a longitudinally extending tunnel, a steering assembly operatively connected to the frame, at least one ski operatively connected to the frame and to the steering assembly, an endless drive track operatively connected to the frame, a motor supported by the frame and is operatively connected to the steering assembly and to the endless drive track for propelling the snowmobile, a straddle-type seat disposed above the tunnel and adapted to accommodate a rider, and a flap assembly. The flap assembly has a flap, a mounting body connected to a rear portion of the tunnel, and at least one toolless fastener extending generally longitudinally and selectively connecting the flap to the mounting body. There is also provided a flap assembly kit for a snowmobile and a method for installing a flap on a rear portion of a tunnel of a snowmobile.

Abstract: A snow bike track assembly includes a frame assembly, at least one strut, an endless track, a plurality of top and bottom rollers, a skid rail assembly, a drive assembly, and a swing arm assembly. The frame assembly is configured to connect to a frame of a motorcycle in place of a rear wheel of the motorcycle. The at least one strut is connected to the frame assembly and configured to connect to the motorcycle frame in place of a rear shock of the motorcycle. The plurality of top rollers are mounted to the frame assembly and arranged to support the endless track. The plurality of lower rollers are mounted to the skid rail assembly and arranged to support the endless track. The drive assembly is configured to drive the endless track. The swing arm assembly is coupled between the frame assembly and the skid rail assembly.

Abstract: The radiator is disposed between the accommodation box and a front wheel. A rear edge lower portion, which is at least part of a rear edge, of the cover with which an opening of the accommodation box can be closed and opened is inclined obliquely in side view of the vehicle body, and the cover is supported in an opening-forward manner with reference to a support shaft disposed along the inclination.

Abstract: Embodiments of the present disclosure describe a snowmobile including a chassis, a tunnel, an engine, a drive track and a drivetrain. The tunnel is attached to the chassis and includes running boards located on either side of the tunnel. The engine is attached to the chassis and within an engine bay. The drivetrain is operatively connected to the engine to deliver propulsive power to the drive track, wherein the running boards extend forward alongside at least a portion of the engine bay.

Abstract: A system and method for deploying scratchers for a tracked vehicle, such as a snowmobile, are described. The scratchers can be deployed in response to the engine temperature of the tracked vehicle exceeding a predetermined threshold. Alternatively, the scratchers can be deployed via actuation of a switch by an operator.

Abstract: A snowmobile has a frame including an inverted U-shaped tunnel having top, left and right portions at least partly enclosing a space. A drive track, operatively connected to an engine, is disposed around a rear suspension and at least partly in the space. An air intake system has a heat exchanger surface disposed in or adjacent to the space. Air flowing through the intake system contacts the heat exchanger surface to be cooled thereby before entering the engine.

Abstract: A snowmobile floater attachment assembly for adapting a snowmobile into a land vehicle and watercraft includes a snowmobile that has a top side and a bottom side. The snowmobile includes a left ski, a right ski and a track that extends outwardly from the bottom side. A primary floater is removably attachable to the snowmobile and provides buoyancy to a rear side of the snowmobile. A plurality of back couplers is included. Each of the back couplers removably attaches the primary floater to the snowmobile. A first ski floater and a second ski floater are included. The first ski floater is positioned on the left ski and the second ski floater is positioned on the right ski to provide buoyancy to a forward side of the snowmobile. The snowmobile floats in water when each of the primary, first ski and second ski floaters is attached to the snowmobile.

Abstract: An amphibious vehicle that has combined structure of a snowmobile and a small water craft. The device has a front track that is connected to a steering mechanism of a snowmobile. A seat is provided for one or more riders. A track drives the snow mobile and helps to propel the boat when on water. However, the device also has a jet drive attached to the drive system of the motor. A water intake that is also driven by the motor is also provided to ensure adequate water for the jet drive. The device is steered with a handlebar much like a snowmobile. And can be easily moved from land to water and back to land again. The invention can be used for recreation, by first responders, or by other industry or government operations. Moreover, the invention can augment existing amphibious vehicles.

Abstract: A snowmobile has a frame having a motor module. The motor module has a front portion defining a cross member and further defining an aperture below the cross member. The frame further has a tunnel, a suspension module, a motor, a handlebar, front left and right skis both operatively connected to the handlebar and front left and right suspension assemblies operatively connecting the front left and right skis respectively to the suspension module and to the motor module. Each one of the front left and right suspension assemblies have a respective support arm having a proximal end positioned longitudinally forward of the motor module and a proximal fastener pivotally connecting the proximal end to the front portion of the motor module about a pivot axis. A line extending from a left pivot axis to a right pivot axis is contained in the cross member.

Abstract: A saddle-ridden vehicle includes: an engine; a clutch which enables or disables motive power transmission between a crankshaft provided in the engine and a transmission mechanism; a turbocharger which compresses air for burning to be supplied to the engine; and a throttle device which adjusts a rate of air supply to the engine by controlling an opening angle of a throttle valve using a drive motor, the turbocharger includes a turbine unit which is driven by exhaust gas of the engine and a compressor unit which compresses air receiving drive force of the turbine unit; the clutch is disposed at one side, in a vehicle width direction, of the engine; and the compressor unit and the drive motor are disposed at the other side of the engine in the vehicle width direction.

Abstract: A vehicle has a frame, an engine connected to the frame, an output shaft driven by the engine, a bracket resiliently mounted to the engine, a countershaft rotationally supported by the bracket, a driving pulley disposed on the output shaft and rotating therewith, a driven pulley disposed on the countershaft and rotating therewith, a drive belt looped around the driving and driven pulleys to transfer torque from the driving pulley to the driven pulley, the driving pulley, the driven pulley and the drive belt together forming a continuously variable transmission, and at least one ground engaging member operatively connected to the countershaft.

Abstract: A snowmobile includes a transmission unit that transmits a driving force generated by an engine to the ground surface, in which ground touching portions of the transmission unit that are spaced apart from each other in the vehicle width direction receive reaction forces mutually different in magnitude from the ground surface; a suspension that supports the transmission unit so as to swing in the up-down direction; and a vehicle body vibration control damper extending between a first portion and a second portion that are spaced apart from each other of the vehicle body frame and a member fixed to the vehicle body frame, the vehicle body vibration control damper generating a damping force against variations that change the distance between the first portion and the second portion.

Abstract: An ice scratcher for attachment to a snowmobile includes first and second ice scratcher end portions opposite to each other, an elongate member connected to the second ice scratcher end portion, and a spring connecting the first ice scratcher end portion to the elongate member. The spring has a plurality of coils defining a coil radius. The spring is movable between an unbent configuration, wherein a centerline passing through respective centers of each coil of the plurality of coils defines a coil axis, and a bent configuration, wherein at least a portion of the centerline is displaced from the coil axis. At least a portion of the first ice scratcher end portion is radially spaced from the coil axis by a distance less than the coil radius and adapted for attachment to the snowmobile. Ice scratcher assemblies, kits and snowmobiles having the ice scratcher are also disclosed.

Abstract: A snowmobile has a frame having a tunnel, a motor mounted to the frame, the motor having a motor shaft, at least one ski operatively connected to the frame and a continuously variable transmission. The continuously variable transmission has a driving pulley operatively connected to the motor shaft, a driven pulley, and a drive belt looped around the driving pulley and the driven pulley. The snowmobile also has a drive track operatively connected to the driven pulley, a flexible mechanical element operatively connecting the drive track to the driven pulley, the drive track rotating in a first direction during operation of the snowmobile, and at least one of the motor shaft. The driving pulley and the driven pulley rotate in a second direction opposite the first direction during operation of the snowmobile.

Abstract: Apparatus and associated methods relate to remote control over a number of degrees of freedom of coupling between a first suspension member and a second suspension member. In an illustrative embodiment, when in an uncoupled state, the first suspension member may move substantially independently of any motion of the second suspension member. When in a coupled state, for example, the first suspension member may move in response to movement of the second suspension member. In some embodiments, the coupling between members may be altered by selectively permitting at least one degree of freedom of motion of the suspension system. For example, in some systems, a variable shock absorber may be selectively set to a fixed length in response to a control system signal. A remotely coupled suspension system may advantageously provide dynamically controllable suspension configurations for various riding conditions.

Abstract: A track assembly for a vehicle has an endless track having a belt disposed on an inner side thereof, a frame member, a first axle connected to the frame member and disposed at least in part inside the track, a first pulley disposed inside the endless track and mounted to the first axle, the first pulley being rotatable relative to the frame member, the belt being received in part inside the first pulley, a second axle connected to the frame member and disposed at least in part inside the track, a second pulley disposed inside the endless track and mounted to the second axle, the belt being received in part inside the second pulley, and a brake assembly operatively connected to one of the first and second pulleys. A snowmobile having the track assembly is also disclosed.

Abstract: A vehicle includes a cradle having a structure substantially aligned along a horizontal plane, and a tower extending vertically upward from the structure. A powertrain is supported by the cradle, and includes an elastic axis, and a torque axis. An engine mounting system interconnects the powertrain and the cradle. The engine mounting system includes an engine mount that is attached to the tower, and a mounting bracket attached to the powertrain and the engine mount. An elastic center of the tower is laterally offset from the torque axis, and is vertically offset from the torque axis to position the engine mounting system, such that the elastic axis of the powertrain is substantially aligned with the torque axis of the powertrain.

Abstract: A snowmobile comprises a chassis with a front portion and a tunnel, and a power train unit supported by the chassis. The snowmobile further includes a plurality of ground-engaging members cooperating with the power train unit to operate the snowmobile. The plurality of ground-engaging members includes a pair of front skis and an endless track assembly. A snowmobile is also depicted which has a raised front chassis relative to the drives haft, which raises the clearance of the front chassis for deep snow.

Abstract: A snowmobile has a frame having a tunnel, an engine supported by the frame, at least one ski connected to the frame, a drive track operatively connected to the engine and disposed at least in part below the tunnel, and a fuel tank connected to a top of the tunnel. The fuel tank defines a passage extending therethrough from a top of the fuel tank to a bottom of the fuel tank. The passage is adapted for receiving a battery therein.

Abstract: A side panel for a vehicle having a straddle seat. The side panel has an outer surface and is configured to be connected on a side of the vehicle at least in part longitudinally forward of the straddle seat and vertically lower than the straddle seat. The outer surface defines a first leg area configured to accommodate at least a portion of a leg of a driver seated on the straddle seat in a first position, and a second leg area configured to accommodate at least a portion of the leg of the driver seated on the straddle seat in a second position. The second leg area is disposed at least in part longitudinally forward of the first leg area when the side panel is connected on the vehicle. A vehicle having a left and right side panel is also disclosed.

Abstract: A suspension assembly adapted for use in a snowmobile having a closed-loop track includes at least one ground contact engaged with the closed-loop track. An elongated swing arm is angularly disposed in the closed-loop track and extends between a front end portion adapted to be coupled to the chassis, and a rear end portion coupled to the at least one ground contact. A front resilient member is disposed in the closed-loop track and has an upper end pivotably coupled to the front end portion of the swing arm, and a lower end pivotably coupled to the at least one ground contact. A rear resilient member is disposed in the closed-loop track and has an upper end adapted to be pivotally coupled to the chassis, and a lower end pivotally coupled to the at least one ground contact. A pivot arrangement is connected to the swing arm for permitting at least rotation of the swing arm about a pivot axis extending longitudinally of the at least one ground contact.

Abstract: A leaning vehicle has a frame pivotally connected to a shock tower, at least one biasing member connected to the frame, front left and right suspension assemblies each having a shock absorber connected to the shock tower, two front ground engaging members, a rear suspension assembly, and a rear ground engaging member. The at least one biasing member applies a first force to the shock tower when the frame has pivoted relative to the shock tower. When the frame pivots left, a force is transferred to the front left ground engaging member by the left shock absorber to apply a force having a downward component to the front left ground engaging member. When the frame pivots right, a force is transferred to the front right ground engaging member by the right shock absorber to apply a force having a downward component to the front right ground engaging member.

Abstract: A skid frame for a snowmobile is disclosed including a generally planar skid surface extending between front and rear idler wheels. The front and rear idler wheel are offset from one another and define a longitudinal direction. A track encircles the skid frame having the skid surface positioned over a center of the track such that a major longitudinally extending portion of the track that is 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 extend in the horizontal direction at least 25 percent of a width of the track. A suspension arm member may mount the skid rail and include mount portions for mounting to a tunnel and spanning a distance at least twice the width of the longitudinal beam.

Abstract: A snowmobile includes a vehicle body frame including a tunnel portion extending in a vehicle front-rear direction. The tunnel portion includes a top wall made of a carbon fiber-reinforced plastic material, a left side wall made of a carbon fiber-reinforced plastic material, a right side wall made of a carbon fiber-reinforced plastic material, a left reinforcing member reinforcing the left side wall and made of a carbon fiber-reinforced plastic material, and a right reinforcing member reinforcing the right side wall and made of a carbon fiber-reinforced plastic material. A first closed cross-section is defined by the top wall, the left side wall and the left reinforcing member, and a second closed cross-section is defined by the top wall, the right side wall and the right reinforcing member.

Abstract: A multipurpose mobility system of the present invention includes a land vehicle, a platform removable engageable with the land vehicle. The platform includes a bottom portion and a rear portion and a central axis bisecting the bottom portion and the rear portion. At least one opening defined in the bottom portion is used to receive the land vehicle thereby exposing the driving arrangements of the land vehicle to water to allow moving the land vehicle positioned on the platform on the water. The platform includes a pair of driving wheel devices connected to the rear portion and spaced from one another.

Abstract: A snowmobile has a frame including a tunnel, a least one ski operatively connected to the frame, a seat disposed above the tunnel, a fuel tank disposed on the frame, and an engine connected to the frame forwardly of the fuel tank. The engine has at least one cylinder, at least one intake port, at least one exhaust port, and a laterally extending output shaft defining an output shaft axis. An endless track is disposed at least in part under the tunnel and is operatively connected to the engine. An air intake system is fluidly connected to the at least one intake port. An exhaust system is fluidly connected to the at least one exhaust port. The exhaust system includes a muffler disposed between the output shaft axis and the fuel tank in a longitudinal direction of the snowmobile.

Abstract: A snowmobile (100) has a frame (106) comprising a tunnel (108) and an engine cradle (110) containing an engine (114). A drive track (126) is operatively connected to the tunnel. A front drive axle (127) connected to the engine engages the drive track. A front (102) of the snowmobile comprises a hull connected to the frame and to front telescopic suspension struts (112). The snowmobile also comprises front skis (116) connected at attachment points (150) to the front telescopic suspension struts. The drive track has a front portion (125) defining a track angle (B) between 20 and 40 degrees from horizontal. A horizontal distance (C) between the attachment points and the front drive axle is between 600 mm and 900 mm. The hull has a bottom surface (160) wherein at least a portion has an average hull angle (A) between 10 and 30 degrees from horizontal.

Abstract: A suspension assembly for a snowmobile comprises first and second suspension arms pivotally connected to a chassis and to a rail, and extending forwardly and upwardly from the rail. A bracket arm is fixedly connected to the first suspension arm. A link is pivotally connected to the bracket arm. A first shock absorber is pivotally connected to the first suspension arm and to the rail. The lower end of the first shock absorber is disposed forwardly of the lower end of the first suspension arm. A second shock absorber is pivotally connected to the link and to second suspension arm. The lower end of the second shock absorber is disposed rearwardly of the lower end of the first shock absorber. A tie rod is pivotally connected to the link, and to the second suspension arm. A snowmobile having such suspension system is also disclosed.