Moment Series Breakdown
Two heavy hitters pitted against each other. The Sierra and Siren platforms differ in quite a few ways, and deliver unique characteristics to fit your style of skiing. Whether you're after a maneuverable, twin rockered platform with excellent edge grip or a more directional and composed powerhouse, you'll find a build that let's you tear up the mountain — exactly how you want to.
The two key characteristics that differentiate these series are the rocker profile and mount point - two major design criteria that determine how quick the skis maneuver, how powerful they are when driven, and how they handle different types of terrain and snow conditions.
The Similarities:
The Sierra and Siren both feature a stout flex profile and the ability to charge through chop and crud while retaining the ability to throw them sideways, shut down speed, or change direction when the trees get a little tight.
The Differences:
The main differences here are two fold: mount point and rocker profile.
The more progressive (forward) mount point and twin rockered design of the Sierra allows for quicker pivoting and faster maneuverability, while the more traditional (rearward) mount point and front rocker / flatter tail design of the Siren provides more stability and composure when skiing fast and through variable terrain.
01 — Meet the skis
Grip + maneuverability
Planted, quick, and maneuverable — driven by Triple Camber.
02 — Shape & profile
The rocker profile sets these two series apart and provides their unique skiing styles.
The Sierra's Triple Camber is a signature Moment profile featuring two smaller camber pockets within the overall camber. Combining this with deep tip and tail rocker, Triple Camber provides extra grip, creating focused edge pressure for confidence inspiring bite while retaining the ability to slip and slash when the terrain tightens up or the chute starts closing out.

The Siren's Front Rocker features lower tip rocker and a considerably flatter tail, keeping the traditional camber pocket underfoot. Powerful and confidence inspiring, the tip rocker aids in float and maneuverability through 3D snow, while the flatter tail provides support and composure when skiing fast through chop, crud, and anything else less-than-ideal the mountain throws your way.

03 — Sizing & which width
The Sierra and Siren come in slightly different length increments. Generally, the Sierra will ski a touch shorter than the Siren, so comparable sizes between the two would be the Sierra 174 vs the Siren 170. Fear not, there's plenty of widths and sizes to choose from, so you can rip everything from hardpack to chop to those pow days we dream of at night.
| Sierra 96 | Sierra 104 | Siren 98 | Siren 104 |
|---|---|---|---|
| 154 | 154 | 164 | 164 |
| 164 | 164 | 170 | 170 |
| 174 | 174 | 176 | 176 |
| 179 | 179 |
The verdict
Choose the sierra if
Rail turns, throw it sideways, then pin it to the bottom. Grippy, damp, and composed — Triple Camber is the torch to carry you through the darkness, just don't get lost along the way.
Choose the siren if
Drive the shovel, tell 'em where you want to go, and hang on for the ride. Powerful, composed, and incredibly compliant — the new go to platform for speed demons and big mountain senders.
We get it, the differences can be hard to digest sometimes. Click below to get a personalized ski recommendation from an actual human.
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