| 摘要 |
A steering keel for a snowmobile ski including a longitudinally extending wear bar adapted to be mounted on the underside of the ski and having downwardly converging, elongate side faces, a hardened wear rail mounted on the underside of said wear bar and having elongate, downwardly converging, edge defining side faces which abut, and are in alignment with, the downwardly converging side faces of the wear bar to enhance the penetration of the steering keel into the surface being traversed.
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