Which single climbing rope should you choose? Complete Beal guide

For a long time, 60 metres was the standard length for sport climbing. Today, that choice is becoming limiting.

In many French climbing areas, routes between 30 and 40 metres are common. This is the case on many modern crags, in major climbing areas, and across a large number of sectors in the south of France. A rope that is too short forces you to check every route constantly and can simply prevent you from climbing a route that would have been accessible with a few extra metres.

For a main rope, we generally recommend 80 metres.

Why choose an 80-metre rope?

An 80 m rope offers several practical advantages:

• it allows you to climb routes of up to around 40 m when lowering from the anchor;
• it covers most modern French sport climbing areas;
• it avoids having to buy a second rope for sectors with long routes;
• it leaves some margin when the lengths given in the guidebook are approximate, which happens more often than people think;
• it allows you to cut off a worn end later while still keeping a rope long enough to remain useful.

This last point is often underestimated. On a rope used regularly for sport climbing, the first few metres are generally the most heavily loaded: repeated knots, falls, rubbing through quickdraws and lowering the climber. With an 80 m rope, it is sometimes possible to remove a worn section and still keep 70–75 m of genuinely usable rope.

A 70 m rope offers less margin. After cutting off a few metres, it can quickly become too short for the areas where it was originally used.

50-metre rope

Best reserved mainly for:

• certain climbing gyms;
• small crags where the route lengths are perfectly known;
• specific mountain uses;
• a secondary rope for a particular area.

As a main outdoor rope, 50 m is now too limiting in most regions.

60-metre rope

It can still work in sectors made up entirely of short routes. It remains lighter and cheaper, but it severely limits route choice. For a purchase intended to last several years, its appeal is now fairly limited unless the intended use is clearly defined.

70-metre rope

It remains versatile and is sufficient at many crags. It is a good compromise for climbers looking to reduce weight or cost, but it leaves less margin than an 80 m rope for long routes and for cutting off worn ends later.

80-metre rope

For regular sport climbing, this is the option we favour at 4c⁺. It is slightly heavier and bulkier, but it allows you to climb in far more areas without constantly wondering whether the last five metres will be missing.

The extra weight is real, yes. But a lightweight rope that stays in the bag because it is too short for the route of the day is a fairly theoretical saving.

100-metre rope — a special case for the Joker and Opera

Not every rope in the Beal range is available in 100 m. At 4c⁺, only the Joker 9.1 and the Opera 8.5 are offered in this length.

For the Joker, the 100 m version is available at 4c⁺ with two treatments, and the choice depends on how you climb:

• Dry Cover / Control-Safe: integrated middle marking, a real safety advantage on a rope this long. The logical choice for sport climbing and rock multipitch routes.
• Golden Dry: enhanced protection against water and moisture, designed for mountaineering, snow and cold conditions rather than dry rock.

In both cases, 100 m is a length worth considering for areas with genuinely long routes — Céüse, Saint-Léger, Chulilla, Geyikbayiri… — but also as a way of extending the rope’s useful life. With 20 m more margin than an 80 m rope, you can cut off a worn end several times before the rope becomes too short.

For the Opera, the 100 m version offers the same benefit without making the total pack weight excessive, which makes sense given that it already weighs just 48 g/m. It is an option for the same profiles described above: experienced climbers, multipitch routes and sectors with long extensions.

For most climbers, 80 m remains the right compromise. A 100 m rope is a specialist choice, not the standard.

One rule that applies regardless of rope length

Even with an 80 m rope, always tie a knot in the end.

A route may be longer than stated, the anchor may have been moved, or the guidebook may contain an error. The extra length reduces the risk, but it never replaces good belaying habits.

Beal Opera 8.5 Unicore: ultralight for climbers who know why they are choosing it

With a diameter of 8.5 mm and a weight of 48 g/m, Beal presents the Opera 8.5 as one of the lightest single ropes on the market. It is triple certified for use as a single, half and twin rope.

It is not simply a slightly thinner Joker. At 8.5 mm, you move into a different category: performance, long approaches, multipitch routes, mountaineering and experienced climbers.

It is available with Unicore construction, bonding the core and sheath together, and with Dry Cover or Golden Dry treatments depending on the intended use.

Weight savings on an 80-metre rope

At 48 g/m, an 80 m Opera weighs theoretically:

48 × 80 = 3.84 kg

For comparison, based on the weights listed on the product pages:

• Joker 9.1 Unicore, 52 g/m: approximately 4.16 kg
• Stinger 9.4 Unicore, 58 g/m: approximately 4.64 kg
• Booster 9.7 Unicore, 63 g/m: approximately 5.04 kg

Between an 80 m Opera and an 80 m Booster, the theoretical difference exceeds 1.2 kg. On a route close to the car, that may not change your day. After a two-hour approach or on a multipitch route, the difference becomes much easier to appreciate.

Who is it for?

The Beal Opera 8.5 is mainly aimed at:

• very experienced climbers;
• multipitch routes;
• mountaineering;
• technical routes with long approaches;
• climbers looking for a very lightweight performance rope;
• those who are fully comfortable belaying with small-diameter ropes;
• those who will genuinely make use of its triple certification.

Its strengths

• Exceptional weight: 48 g/m.
• Very low bulk.
• Triple certification: single, half and twin.
• Unicore technology.
• Treatments suited to cragging or mountain use depending on the version chosen.
• Particularly significant weight savings in 80 m.

Its limitations

Its 8.5 mm diameter requires real experience. It can run very quickly through a belay device and does not offer the same margin of control as a 9.7 or 9.8 mm rope. The compatibility stated by the belay-device manufacturer must be checked carefully, but technical compatibility never replaces the experience of the belayer.

It is also not the rope we would choose for:

• a first rope purchase;
• a beginner belayer;
• long top-rope sessions;
• repeatedly working a route close to the ground;
• group use;
• someone whose main priority is durability.

A rope this thin is a specialist tool. The fact that it can be used across several disciplines does not make it suitable for everyone.

Our view

The Beal Opera 8.5 is an outstanding rope for climbers looking to reduce the weight of an 80 m rope as much as possible. It makes the most sense on multipitch routes, in the mountains and on long approaches.

For climbing sport routes every weekend and working projects, the Joker or Stinger will generally make more sense. For a beginner, the Karma or Booster remain much more suitable choices.

The Opera is not the best Beal rope for everyone. It is probably the best for one very specific need: carrying 80 m of rope with the lowest possible weight.

Comparison table — Beal single-rope range in 80 m

The total weight is calculated by multiplying the stated weight per metre by 80. This is a theoretical value used to compare the models with one another. Data for the Karma, Zenith, Sunrise, Joker and Opera verified on beal-planet.com and 4c-plus.com.

Selection by profile

First 80-metre rope — Karma 9.8 A reassuring 9.8 mm diameter, good handling and a reasonable weight for the category: 58 g/m, or 4.64 kg in 80 m. In this length, it gives you a versatile rope for sport climbing from the start.

One rope for regular climbing — Booster 9.7 Unicore Our most general recommendation for working routes, taking frequent falls and maintaining good control when belaying.

Lighter sport-climbing rope — Stinger 9.4 Unicore It reduces the weight of an 80 m rope without moving straight into the most demanding diameters.

Thin and versatile rope — Joker 9.1 Unicore For the experienced climber who alternates between sport climbing, multipitch routes and mountain use. In 80 m, its low weight becomes particularly attractive.

Lightest 80-metre rope — Opera 8.5 Unicore The most radical choice when every gram matters. Reserved for experienced users and a fully compatible belay device.

Final recommendation

For most climbers looking for a main sport-climbing rope, we recommend going directly for 80 m.

• Karma 9.8 in 80 m: first rope and classic use.
• Booster 9.7 in 80 m: the best all-round option for frequent climbing.
• Zenith 9.5 in 80 m: a straightforward sport-climbing rope without paying for unnecessary treatments when you do not need them.
• Stinger 9.4 in 80 m: an excellent balance of weight, handling and durability.
• Sunrise 9.2 in 80 m: a thin rope made from recycled material.
• Joker 9.1 in 80 m: technical versatility for sport climbing and mountain use.
• Opera 8.5 in 80 m: minimum weight for multipitch routes and mountaineering.

Choosing 80 m does not mean every route is 40 m long. It means the rope will remain suitable for more crags, provide a genuine safety margin and allow worn ends to be cut off without becoming too short immediately.

An 80 m rope costs and weighs a little more. Above all, it avoids buying a 70 m rope only to discover six months later that the next one should have been 80.

The full range of Beal ropes is available on the dedicated brand page.