Ski-Doo's mountain flagship, the 800 Summit Highmark X with a deep-powder tearing 151-inch track rotating two-inch lugs and an 800 cc twin lunger is mountain killer extra ordinaire. Of the Summit series AmSnow has evaluated, this is the second with Doo's 151-inch track. Like the '00 Summit 700 the test staff tore up the Rockies with; this 800 X ... More @Wikipedia
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