Nitro Alternator vs Nitro Optisym

How they compare

the Nitro Alternator leans more all mountain, while the Nitro Optisym leans more freestyle. The Nitro Alternator uses a directional shape while the Nitro Optisym is twin. Both feature camber profiles — arc underfoot for strong edge hold, pop, and stability on hardpack—lively and precise. The Nitro Alternator is slightly stiffer, though both sit in the stiff range.