Light weight track for a snowmobile

A ground engaging track for use with a vehicle having a drive sprocket, the track comprising:

• a body portion having an exterior surface to engage the ground and an interior surface having driven members configured to be engaged by the drive sprocket to rotate the body portion and move the vehicle, the body portion being molded from a polymeric material having a Young's modulus greater than 10,000 psi;
• and
• a plurality of reinforcement members molded into the body portion.

A ground engaging track for use with a vehicle having a drive sprocket, the track comprising a body portion having an interior surface including a plurality of drive lugs, the plurality of drive lugs being longitudinally spaced apart to provide driven members configured to be engaged by the drive sprocket to rotate the body portion and move the vehicle, the body portion and the plurality of drive lugs being integrally formed from a polymeric material having a degree of crystallinity greater than or equal to 50%.

A ground engaging track for use with a vehicle having a drive sprocket, the track comprising an endless belt body portion having an interior surface including a plurality of drive lugs formed integrally with the body portion, the plurality of drive lugs being longitudinally spaced apart to provide driven members configured to be engaged by the drive sprocket to rotate the body portion and move the vehicle, the body portion also having an exterior surface including a plurality of tread lugs formed integrally with the body portion and configured to engage the ground, a first set of tread lugs being longitudinally aligned with the drive lugs and a second set of tread lugs being longitudinally aligned with spaces between adjacent drive lugs.

A ground engaging track for use with a vehicle having a drive sprocket, the track comprising an endless belt body portion having an exterior surface to engage the ground and an interior surface having driven members configured to be engaged by the drive sprocket to rotate the endless belt body portion and move the vehicle, the body portion having a thickness less than 0.2 inch.

A ground engaging track for use with a vehicle having a drive sprocket, the track comprising a continuous loop body portion having an exterior surface to engage the ground and an interior surface including members configured to be engaged by the drive sprocket to rotate the body portion and move the vehicle, the body portion being formed from a polymeric material having a molecular weight greater than two million Daltons.