Black Diamond 9.9
The 9.9 is a 9.9 mm single rope from Black Diamond, at 66.9 g/m, for gym, single-pitch sport and top-rope. Rated for 6 UIAA falls with 8.9 kN impact force, 33% dynamic elongation and a 34% sheath share. No dry treatment.
Black Diamond's 9.9, which BD calls its go-to rope for year-round rock climbing: a thick diameter for day-in, day-out use with a 2x2 weave regular sheath and a middle mark. 66.9 g/m, 8.9 kN impact force, 6.5 % static elongation, 33 % dynamic, 34 % sheath, no dry treatment, made in Spain. BD publishes no UIAA fall count on the page; the stored 6 is not re-verified. Sold in 40, 60 and 70 m.
9.9 belay device compatibility
Compatible with 39 of the 41 belay devices we track that are rated for single ropes, all of them ideal.
Ideal on, among others:
Every belay device rated for a 9.9 mm single rope
What the 9.9 is for
Best for gym, single-pitch sport and top-rope. Aimed at beginner to intermediate climbers. Handling feel: moderate. Durability: very high.
Strengths & Trade-offs
9.9 strengths
- 2x2 weave regular sheath, which BD says is built for everyday use
- BD calls it its go-to rope for year-round rock climbing
- Middle mark (BD)
- Sold in 40, 60 and 70 m
9.9 trade-offs
- No dry treatment
- 8.9 kN impact force, the third-highest of the 13 single ropes between 9.9 and 10 mm we track
- 66.9 g/m, in the heaviest quarter of the 46 single ropes between 9.7 and 10.1 mm we track
9.9 spec profile
The maker's figures for the 9.9, each against the 133 single ropes we track.
- Weight 66.9 g/m: on the heavy side for a single rope
- Diameter 9.9 mm: on the thick side for a single rope
- UIAA falls 6: a typical fall rating for a single rope
- Impact force 8.9 kN: a harder catch than most single ropes
- Dynamic elongation 33%: typical stretch in a fall for a single rope
- Sheath share 34%: among the lowest sheath shares for a single rope
9.9 specifications
| Diameter | 9.9 mm |
| Weight | 66.9 g/m |
| Sheath share | 34% |
| Lengths sold | 40 / 60 / 70 m |
| Certified as | Single |
| Standards | EN 892, UIAA 101 |
| UIAA falls | 6 |
| Impact force | 8.9 kN |
| Dynamic elongation | 33% |
| Static elongation | 6.5% |
| Sheath slippage | 0 mm |
| Dry treatment | None |
| UIAA Water Repellent | No |
| Core construction | standard |
| Middle mark | Ink mark |
| Lap coiled | Yes |
| Released | 2024 |
What the 9.9 costs
No shop in the EU pool lists the 9.9 in stock right now.
Alternatives to the 9.9
- Petzl Mambo 10.1
- Edelrid Boa Gym 9.8
- Fixe Rocco 10
- Mammut 10.0 Galaxy Classic
- Tendon Smart 10.0
- Edelrid Boa Eco 9.8
Prices, stock and owner fit data on this page update daily. You are welcome to cite these figures if you name climbing-gear.com and link to this page - see our data terms.