Atomic Redster S9 Revoshock S + I 12 GW 26/27
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PTO Verdict
“A slalom-shaped piste ski: more give than a race ski, yet it still asks you to stay ahead of it.”
Best for: Advanced and expert skiers, ex-racers among them, who live on firm groomers and want short, carved turns from a ski sold with its binding.
Not for: Skiers who can't yet carve a clean turn: a camber slalom ski this narrow expects you to. Anyone who likes long arcs at speed will run out of radius, which tops out at 13.1 m. Skiers whose days run to powder and slush will find a 68 mm waist has little to work with, and a retailer's 26/27 tester would keep it off steeps and bumps too.
At a Glance
Terrain
Ability Level
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Compatible Ski Bindings
Browse our recommended binding brands for this ski.
Description
The Atomic Redster S9 Revoshock S is a 68 mm slalom-radius piste ski for short, carved turns on firm snow, packaged with Atomic's own I 12 GW binding. Atomic's catalog lists it under Piste, its datasheet calls the turns Short, and its product page sets the skill level at Advanced and Expert.
Atomic's US page for this ski, as it read in April 2026, explains the build. Revoshock S, it says, turns shocks into stability and acceleration, while Carbon Boost inserts under the heel add stiffness for more drive out of each turn. The key features also include TI Powered titanal, Ultrawall sidewalls and a Power Woodcore built from ash and poplar, and the same page describes a gliding plate beneath the boot that lets the ski flex and grip along its full edge.
Across the four lengths, 155 to 170 cm, the waist stays at 68 mm while the radius grows 0.6 m a size, from 11.3 m to 13.1 m. The profile is Active Camber 0/100/0; Atomic credits it with more edge contact and better grip on icy slopes, and Atomic's datasheet and its 12-item technology list mention no rocker. The factory tune is 87° side, 0.8° base, and the datasheet puts the 165 cm at 3,181 g per ski.
If you still skid most of your turns, a softer, more forgiving carver will suit you better; if your usual day is soft snow and powder, look for width and a rockered tip.
Ask us about length, and we will check that your boot soles suit the I 12 GW. Mounting is free when ski and binding are both bought from us.
Details
- Type
- SKI
- Vendor
- Atomic
- SKU
- AASS03628155
- UPC / GTIN
- 00887445454052
155 cm
Atomic Redster S9 Revoshock S + I 12 GW
By PTO Team, Based on Atomic’s published specs and product pages and published 25/26 and 26/27 third-party tests
Spec analysis plus published 25/26 and 26/27 third-party tests · Analysis dated
These 10-point scores express PTO's editorial assessment of suitability for each use. They are not customer ratings or instrumented measurements; the analysis below explains the trade-offs.
Specs
- Waist
- 68 mm, every length
- Dimensions
- 155 cm: 115 / 68 / 101 · 160 cm: 116.5 / 68 / 102.5 · 165 cm: 118 / 68 / 104 · 170 cm: 119.5 / 68 / 105.5 (tip / waist / tail, mm)
- Turn radius
- 11.3 m (155 cm) · 11.9 m (160 cm) · 12.5 m (165 cm) · 13.1 m (170 cm)
- Turn shape
- Short (Atomic)
- Profile
- Active Camber 0/100/0
- Core
- Power Woodcore (poplar, ash)
- Metal
- TI Powered titanal
- Damping
- Revoshock S
- Carbon
- Carbon Boost (heel inserts)
- Sidewall
- Ultrawall
- Topsheet
- Structured Topsheet
- Base
- World Cup Base Finish
- Edge angles
- Side 87° · base 0.8°
- Weight
- 3,181 g per ski at 165 cm (Atomic datasheet)
- Skill level
- Advanced and Expert, per Atomic
- Binding
- Atomic I 12 GW (in the $1,385 system price)
- Lengths
- 155 cm, 160 cm, 165 cm, 170 cm
- Gender
- Unisex
The take
“A slalom-shaped piste ski: more give than a race ski, yet it still asks you to stay ahead of it.”
Friendlier than a race slalom ski, and still no ski for the back seat: that middle ground is the S9's character.
Whether the S9 is easy or demanding depends on which test you read, and both camps have a point. A German magazine's 25/26 ski test found it suited a broad audience, and its 26/27 test called short turns a breeze, though some of its testers missed a race ski's crisp bite. A retailer's 26/27 test found it precise and powerful with little wiggle room, yet slightly more forgiving than true race skis. Read together, they describe the S9's buyer: a skier who has outgrown an everyday carver but has no use for a full race ski.
The S9 asks for timing. A 12.5 m sidecut at 165 cm, with titanal in the build, grips and pulls hard once tipped on edge, as we read it, and a retailer's 26/27 test bears that out: the shape is tough to keep up with at speed, with a lot of pull into each turn. The same test credits the ski's weight for a planted, solid feel. Start a turn late and the S9 runs ahead of you; start it early and that pull is what you bought it for.
Price won't separate the S9 from its G9, X9S and Q9 Revoshock S siblings, which share its I 12 GW and its $1,385 list price for 26/27. Shape will. Atomic labels the S9's turns Short and the G9's Long, and the G9 runs 67 mm underfoot with a 15 to 18 m radius across 166 to 181 cm. In April 2026, Atomic's US pages labeled both the X9S (65 mm, 14 to 15.6 m) and the Q9 (75 mm, 11.8 to 15 m) Short and Long, pitched the X9S's Multi Radius Sidecut as short and long turns in one ski, and aimed the wider Q9 at GS arcs on groomers and quick turns through late-afternoon chop. Choose the S9 when the short turn is the reason you ski.
The S9's lengths stop at 170 cm, which will be too short for some. A retailer's 26/27 tester, a 235 lb racer, skied the 170 and found it a bit short, preferring a bigger race ski. If you are tall or heavy, or you like a longer arc, start with the G9 or X9S instead.
Keep the S9 on groomed, firm snow. On a hard groomer, under a skier who links short turns cleanly, it gets the nod over a G9, X9S or Q9.
Bindings we'd pair with it
Mount point: The ski and its I 12 GW come as one system; we mount it free, sized to your boot soles, when both are bought from PTO. Our pick: Atomic I 12 GW (part of the system).
- Atomic I 12 GW (sold with this ski)The S9 as Atomic sells it
Atomic's system pairs this S9 with an I 12 GW, and the $1,385 price includes it. Release settings are left to a technician; this page prints none.
Boot soles vary, so we check yours against the I 12 GW. Buy ski and binding from us together and mounting is free, with our technician doing the release setting.
Common Questions
- Is the 26/27 Redster S9 different from the 25/26 one?
- Atomic's US page showed the same article, AASS03628, labeled Season 2025 (25/26) in October 2025 and again in January 2026, then Season 2026 (26/27) in April 2026, with the same datasheet and feature list, so 25/26 tests carry over. The price on those archived pages was $1,250; the 26/27 price is $1,385. The 23/24 and 24/25 S9 is a different build: it came with the X 12 GW, and Atomic's pages for it list no Carbon Boost and a 165 cm weight of 2,991 g per ski, so its tests don't carry over.
- Which Redster S9 length should I choose?
- Atomic makes it from 155 to 170 cm in 5 cm steps, and each step up adds 0.6 m of radius, which trades a little quickness for more ski at speed. Most of the decision rests on body size and turn shape, so tell us about both, and we can narrow the four down to one.
- Is a binding included with the Redster S9, and who mounts it?
- The I 12 GW: this S9 is sold as a ski-and-binding system at $1,385. Your boot soles get checked against it, since not every sole suits every binding. Bought here together, ski and binding are mounted free, with the release setting done by a technician.
- How much does the Redster S9 weigh?
- Atomic's datasheet gives one weight, for the 165 cm: 3,181 g per ski; it lists none for the 155, 160 or 170. Whether that includes the binding, the datasheet doesn't say; a retailer's 26/27 test describes it as the stated weight of ski and binding together.
