Patent ID: 7806487

Claim:
An endless track for fraction of a snowmobile, the endless track comprising: an inner side for facing a set of wheels of the snowmobile, the set of wheels comprising a drive wheel for imparting motion of the endless track; a ground-engaging outer side for engaging the ground, the ground-engaging outer side having traction projections spaced apart along a longitudinal direction of the endless track, each traction projection comprising elastomeric material that contacts the ground when the fraction projection contacts the ground; and reinforcing rods embedded between the inner side and the ground-engaging outer side, the reinforcing rods being spaced apart along the longitudinal direction of the endless track and extending transversally to the longitudinal direction of the endless track to provide transverse rigidity to the endless track, wherein, along the longitudinal direction of the endless track, a spacing of successive reinforcing rods is different from a spacing of successive traction projections such that, when the snowmobile is operated at a given speed, less noise is generated than if the inner side was unchanged and the ground-engaging outer side was unchanged but the spacing of successive reinforcing rods was identical to the spacing of successive traction projections.