A front suspension system for a recreational vehicle such as a snowmobile has a lower A-arm assembly and an upper suspension arm for connecting each front ski to the chassis of the recreational vehicle. The lower A-arm restrains the front ski from moving backward or laterally while the upper arm connects to the top of the spindle to ensure that the spindle remains substantially vertical when the front ski encounters a bump.

 
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> Snowmobile four-cycle engine arrangement

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