Plum R 140 – Review

Overview

The Plum R 140 is an ultralight, ISMF-oriented tech/pin race-touring binding designed for maximum uphill efficiency and lightning-fast transitions. At roughly 140 g per binding, it trades adjustability and plush suspension for minimal weight, consistent release, and a clean, machined-aluminum build. Compared to the R130, the R140 uses a steel heel fork for improved durability and a consistent release feel at a small weight penalty.

Who is it for?

Ski-mountaineering racers and weight-focused tourers prioritizing speed and efficiency.
Minimalists who ski narrow, lightweight race skis in firm conditions.
Not ideal for aggressive resort laps, big skis, or those wanting adjustable release and brakes out of the box.

On‑snow performance

Uphill: Feathery and efficient with secure edging on traverses; the three heel positions, including a +36 mm race position, keep cadence smooth on steep skin tracks.
Transitions: Refined step-in/step-out and simple race-focused handling enable quick, repeatable transitions.
Downhill: Predictable for its class when matched to narrow skis and measured speeds. The fixed release and minimal elasticity mean less shock absorption and margin than all‑around touring bindings.

Specs and what they mean

Type of binding: Tech/pin race touring. Prioritizes low weight and direct power transfer; fewer comfort features than touring-oriented tech bindings.
DIN / release value: Fixed around DIN 8 (some retailers list frontal ~7 / lateral ~8). A fixed value is simple and predictable but cannot be fine‑tuned to skier weight/style.
Elastic travel: Not specified. As with many race bindings, elastic travel is minimal; precise technique and appropriate ski choice matter more.
Brake width: No brake included; optional Plum Race Stopper is ~70 mm. Suits narrow race skis; check ISMF rules and ski waist compatibility.
Weight: ≈140 g per binding (≈280 g/pair). You feel the benefit on long climbs and carries.
Compatibility: Boots with tech inserts; optional 40 mm adjustment rail, Race Stopper, and Plum crampons. Recommended ski waist up to ~80 mm.
Materials: 7075 aluminum with a steel fork. Lightweight chassis with a durable, consistent-feeling heel spring.

Comparisons

Plum R130: Lighter (titanium fork) but less wear‑resistant than the R140’s steel fork. Choose R130 for absolute weight savings, R140 for durability and consistent release.
Dynafit Low Tech Race / ATK Revolution WC / Ski Trab Gara: Some are lighter and equally minimal. Plum stands out for its solid machining, straightforward ergonomics, and ISMF compliance; ATK/Dynafit sometimes offer more spring options or micro-features.
All‑around touring (e.g., Plum Oazo, ATK Crest): Heavier but with brakes, adjustable release ranges, and more elasticity for variable snow and higher speeds.

Key takeaways

Ultralight and ISMF-ready for racing efficiency.
Fixed release: simple, consistent, not adjustable.
Steel fork boosts longevity over the R130’s titanium.
Best on narrow skis and firmer snow.
Optional 40 mm rail and race stopper add practicality and compliance.

Frequently asked questions

Q: Can I daily‑tour on the Plum R 140?
A: You can, but it’s purpose‑built for racing: fixed release, minimal elasticity, and few amenities. For general touring, a slightly heavier binding with brakes and adjustability is usually more versatile.

Q: What ski waist works best?
A: Plum recommends up to ~80 mm. The optional Race Stopper is ~70 mm; ensure your ski waist and ruleset (ISMF) are compatible.

Q: Is there BSL adjustment?
A: Very limited by default. The optional 40 mm adjustment rail provides practical range for boot changes and resale flexibility.