Nitro Alternator FX vs Nitro Optisym Womens

How they compare

Both target all mountain terrain, while the Nitro Alternator FX leans more backcountry, while the Nitro Optisym Womens leans more freestyle. The Nitro Alternator FX uses a directional shape while the Nitro Optisym Womens is twin. Both feature camber profiles — arc underfoot for strong edge hold, pop, and stability on hardpack—lively and precise. The Nitro Alternator FX is noticeably stiffer at 8/10 versus the Nitro Optisym Womens's 5/10, suiting more aggressive riding.