Polaris 850 RMK Khaos 155 vs Yamaha Sidewinder S TX GT EPS: 5-year value retention (63% vs 62%), resale value, and cost of ownership head-to-head. Polaris 850 RMK Khaos 155 holds its value better.
On five-year value retention the Polaris 850 RMK Khaos 155 comes out ahead, holding about 63% of its value versus 62% for the Yamaha Sidewinder S TX GT EPS. Over the first five years the Polaris 850 RMK Khaos 155 loses roughly $6,474 while the Yamaha Sidewinder S TX GT EPS loses about $7,800 — a gap near $1,326.
First-year drop is the biggest factor: the Polaris 850 RMK Khaos 155 sheds about 20% in year one versus 13% for the Yamaha Sidewinder S TX GT EPS. If you buy used, the steeper early drop is what the original owner absorbs.
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