| 摘要 |
Traction enhancing runner assemblies for mounting underneath a snowmobile ski. The runner assemblies of this invention are a single rail with double edges to provide parallel runner bars, but the runner bars are not adjacent each other such that they provide a “staggered” runner arrangement which enhances the traction of the runner bar and hence the stability of the snowmobile on which they are mounted. Also, the double edges are provided with novel grooves that contain hard welds or carbide inserts to enhance the wear characteristics of the runner assemblies.
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