Where to Buy

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Manufacturer's Description

Visit Trango's BigBro page.

Retailers' Descriptions

Here's what other sites are saying:

Trango BigBro(TM) Expandable Tube Chocks are must-have pieces for wide cracks. Their huge range and sleek design save on weight and racking space compared to large cams.

- REI

The Big Bros by Trango Are the biggest, lightest wide crack protection on the planet. Named after George Orwell's book, 1984, in reference to Big Brother watching, Big Bros were designed by Craig Luebben as his Senior Design Project while an engineering student at CSU. Watch him stringing a line of these and you'll never even know he's not plugging cams. Big Bros Are happiest when placed in parallel sided cracks (think Utah sandstone) but, with practice, you can find secure, one-handed placements in a variety of crack geometries. The #5 Big Bro will protect up to an 18in. splitter and the smaller sizes Are great lightweight replacements for your fist-sized cams. Specifications of the Big Bros by Trango Specifications for 0.5: Range: 69 x 86 mm / 2.7 x 3.4 in Weight: 133 gm / 4.7 oz Strength: 15 kN Specifications for 1: Range: 81 x 109 mm / 3.2 x 4.3 in Weight: 175.8 gm / 6.2 oz Strength: 15 kN Specifications for 2: Range: 101 x 145 mm / 4.0 x 5.7 in Weight: 204.1 gm / 7.2 oz Strength: 15 kN Specifications for 3: Range: 135 x 203 mm / 5.3 x 8.0 in Weight: 263.7 gm / 9.3 oz Strength: 15 kN Specifications for 4: Range: 191 x 305 mm / 7.5 x 12.0 in Weight: 348.7 gm / 12.3 oz Strength: 15 kN Specifications for 5: Range: 287 x 467 mm / 11.3 x 18.4 in Weight: 578.3 gm / 20.4 oz Strength: 15 kN ALL Climbing Sales Are Final.

- Moosejaw

Larger than most trad gear, Trango's Big Bro fits in offwidths and wide cracks quickly and simply. Get the weight off your shaky fist stack, stick a Big Bro in the crack, push the button to extend it to the right size, and twist the sleeve to lock it in place. Since Big Bros resist pull in any direction, they're nearly impossible to accidentally dislodge as you climb past. These unique protection pieces are lighter and easier to rack than similar sized cams, and they're the only hope for pro once you start climbing into chicken-wing sizes.

- Backcountry.com

Get the expansion range of an entire set of cams with Trango's telescoping Big Bros cylinders. While your rack's a little lighter, you get solid protection that can handle almost any big job from fist crack to off-width placements.

- Mountain Gear