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Trango Big Bro 3
  • Trango Big Bro 3
  • Trango Big Bro
  • Trango Big Bro

Big Bro 3


My vote: None ( 3.6 avg )


Big Bros are must have pieces for wide cracks. They have a huge range and save on both weight and racking space compared to cams in a similar size. They also resist pull in any direction, adding to their security and your confidence as you climb past them.

• Unparalleled expansion range
• Lighter and take up less racking space than cams
• 6mm Pro Cord is recommended for tethering
• Strength: 12 kN
• Weight: 154-338 g

Retail price

US$ 177.95

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Weight (grams / ounces)

Weight (g / oz)

In grams and ounces, the weight, as stated by the manufacturer/brand.

235 g / 8.30 oz


The size according to the manufacturer/brand.

Strength (kN)

Strength (kN)

In kilonewtons, the strength as stated by the manufacturer/brand.

12 kN


The main or identifying color of the device.

Range (in / mm)

Range (in / mm)

In inches and millimeters, the maximum range as stated by the manufacturer/brand.

5.30 in - 8.00 in
135.00 mm - 203.00 mm


The main climbing gear certifications are CE and UIAA--and normally the UIAA creates the rules that the CE body also supports. When possible, we try to list all the certifications the product carries.

To sell a climbing product in Europe, the device must be CE certified. There are no official requirements to sell climbing gear in the US. The UIAA certification is a voluntary process.

Learn More

Rock and Ice Certifications Guide
( 5 avg )
( 5 avg )

Solid piece of OW protection

Lightweight and low-bulk compared to cams of the same size
Limited use
More difficult to place than cams
I’ve used it a few of times

I bought one used to expand my OW rack. They're a solid addition if you plan to climb a ton of OW or need extra pro for long pitches of this unholy crack size.

They do require a bit more care when placing, but they're solid pieces that take up less room on the harness and come at a similar price to equivalent sizedcams. If you are machoist who enjoys doing battle with wide cracks, having some Big Bros is mandatory.

Trango Big Bro Review
Instruction for Using Big Bro