Review: Fischer RC4 ST

What it is

The Fischer RC4 ST is a front‑side slalom specialist built for high‑energy carving on groomers. It blends a beech‑poplar core with Shaped Ti (double titanal) and full sidewalls to deliver razor‑sharp edge hold, quick edge‑to‑edge transitions, and a lively, precise feel for advanced to expert skiers.

Construction and tech

Beech–poplar wood core: Poplar adds snap and low weight; beech adds damping and strength for a planted ride.
Shaped Ti 0.5/0.5: Two layers of titanal tuned by zone for torsional stiffness, power transfer, and calmness at speed.
Sandwich sidewall: Full sidewalls for direct energy transmission and strong edge purchase on hard snow.
On‑Piste Rocker: Minimal tip rocker for quick turn initiation with full camber underfoot for maximum grip and rebound.
Sintered base: Durable, fast‑gliding base that holds wax and resists wear.

On‑snow performance

Short‑radius carving: With a 68 mm waist and short stated radii, the RC4 ST snaps into turns instantly and fires you out with lively rebound. Rhythm skiing is its happy place.
Edge hold on hard/icy snow: Excellent. The torsional rigidity and titanal layers keep the edge locked when many recreational carvers start to wash out.
Stability and speed: For a slalom‑oriented ski, it’s impressively damp and composed at medium‑high speeds. Push into true GS velocity and you’ll find its limit sooner than a GS ski, but it remains predictable.
Bumps, chop, and soft snow: Manageable for a 68‑mm carver, but it’s not built for crud or afternoon slush piles. Stay on groomers for best results.
Forgiveness and fatigue: It rewards active, precise technique. Skiers who prefer a relaxed, pivoty style may find it demanding in shorter lengths.

Who it’s for and sizing

Ability: Advanced to expert piste skiers who love high‑grip carving and short to medium turns.
Terrain: Groomers, morning corduroy, and hardpack. Not intended for off‑piste or deep soft snow.
Length guidance: Chin‑to‑nose (149–163 cm) for maximum agility and SL feel; nose‑to‑forehead (163–170 cm) for more stability and all‑day composure. Heavier/aggressive skiers should size up.

Comparisons

Atomic Redster S9 Revoshock: The S9 feels ultra‑planted and silky; the RC4 ST is a touch more immediate and lively in short turns. Both offer elite ice grip.
Head Supershape e‑Race/e‑SL: The e‑SL is ultra‑nimble for micro‑radius arcs; the e‑Race stretches better to medium turns. The RC4 ST sits between—precise, powerful, and a bit more neutral out of the tail.
Rossignol Hero ST TI: Rossi brings strong tail snap and power; Fischer offers slightly smoother, easier modulation when you’re really laying it over.

Specs explained

Rocker profile – On‑Piste Rocker: Minimal tip rocker speeds turn initiation; full camber maximizes edge grip and rebound.
Sidecut (117‑68‑105 mm): Narrow waist = lightning‑fast edge changes; moderate tip/tail widths keep the ski calm and precise on hardpack.
Radius by length: Short (≈11–15 m) to encourage quick, rhythmic carving; longer lengths increase stability and stretch the turn shape.
Weight (≈1930 g per ski): Enough mass for damping without feeling sluggish; varies by length/trim.
Available lengths (149/156/163/170 cm): Choose shorter for pure SL agility; go longer for more stability and versatility on‑piste.
Construction (wood + double Ti + sidewall): Maximizes torsional stiffness and power transfer—key for bite on ice.

Note: Exact radius/weight can vary by model year, binding/plate package (e.g., LYT/Powerrail), and length. Check the specific code for your ski.

Pros

Class‑leading edge hold and precision on hard snow
Instant turn initiation with lively energy out of the arc
Damp and composed for its category

Cons

Demands active, precise input; not the most forgiving
Limited versatility off‑piste or in deep soft snow
Lighter LYT/Powerrail sets trade a touch of “race damp” for convenience

Key takeaways

Slalom DNA for quick, rhythmic carving on groomers.
Remarkably calm for a 68‑mm waist carver.
Best for advanced/expert skiers who value grip and precision.

Frequently asked questions

Q: What level is the Fischer RC4 ST for?
A: Advanced to expert piste skiers. It rewards precise edging and pressure with powerful acceleration and steady grip.

Q: What length should I choose?
A: For pure slalom agility, go chin‑to‑nose; for more stability and all‑day composure, go nose‑to‑forehead. Heavier or very aggressive skiers should size up.

Q: How does it compare to the Atomic Redster S9 and Head Supershape e‑Race?
A: RC4 ST is lively and immediate; S9 is ultra‑damped and tracks like it’s on rails; e‑Race is a touch more versatile into medium turns. All are excellent on ice.

Q: Is it good on icy mornings?
A: Yes. The sandwich sidewall and double titanal deliver outstanding torsional rigidity and edge bite, ideal for icy groomers.