Front	Rear	Top
Left	Right	Bottom

Technical Details

I acquired my Salewa Ergo from Backcountry on eBay in 2026.

The Movement is 76 mm. tall, 107 mm. wide, 25 mm. thick, and weighs 102 g. It consists of two forged aluminum plates riveted together with plastic grips between. Two of the rivets have enlarged diameters. All three double as braking surfaces. The rope slot is 34 mm. long and 15 mm. wide.

The front plate is printed with a rope path illustration, "02A0525," and "Ø 8.5-11.0mm." The rear is printed with a rope path illustration, a book-with-an-"i" icon, "EN-15151-2," "02A0525," and "Ø 8.5-11.0mm."

Comments

The Movement is designed for single ropes only. Although this saves weight, it does not compensate for losing the ability to do double-rope rappels.

The Movement has thick walls and considerable depth, which helps it stay cooler than it would have been if designed for minimum weight. The device is large, making it easy to handle. The resulting friction is lower than what I prefer.

The Movement is too specialized for my taste.

[ Top | Movement | SRC v. B | SRC v. C | SRC v. D | Return to Rotating Autoblocks ]

Single Rope Controller, Version A
(#659)

Front	Rear
Left	Right

Technical Details

I acquired my Wild Country Single Rope Controller, Version A from Ragged Mountain Equipment in 1994.

My Wild Country Single Rope Controller, Version A is 104 mm. tall, 53 mm. wide, 29 mm. thick, and weighs 86 g. It consists of two 4.0 mm. aluminum plates separated by three 12.7 mm. diameter, 16.1 mm. long bollards. Round Allen machine screws hold it together. Each plate has an irregular slot for an HMS carabiner.

The front plat has a sticker with a rigging illustration. The rear plate is stamped with "428," "WILD COUNTRY," the Wild Country logo, and "MADE IN ENGLAND."

Comments

The Wild Country Single Rope Controller is rigged by inserting a bight into the right side (as shown) of the controller, and clipping an HMS carabiner through the slots and the bight. The HMS is anchored appropriately. Rope is fed by turning the Controller horizontally. During a fall, the Controller is pulled into the orientation shown in the photograph, and the HMS carabiner is pulled to the side, wedging the rope between the carabiner and the two lower pins.

The Single Rope Controller is similar to the Camp Yo-yo, but does not have the V-slot that was added to the Yo-yo.

[ Top | Movement | SRC v. A | SRC v. C | SRC v. D | Return to Rotating Autoblocks ]

Single Rope Controller, Version B
(#3833)

Front	Rear
Left	Right

Technical Details

I acquired this Wild Country Single Rope Controller, Version B from Jameson Riser in 2023.

My Version B is 105 mm. long, 63 mm. wide, 30 mm. thick, and weighs 89 g. It consists of two irregular 4.0 mm. aluminum plates separated by three 12.7 mm. diameter, 16.0 mm. long bollards. Round Allen machine screws hold it together. Each plate has an irregular slot for an HMS carabiner.

The front plate is and the inside of the rear plate are stamped with "SRC," "WILD COUNTRY," the Wild Country logo, and "BRITAIN." The rear plate has a sticker with a rigging illustration.

Comments

Version B has a longer carabiner slot than Version A. This makes feeding the rope somewhat easier.

[ Top | Movement | SRC v. A | SRC v. B | SRC v. D | Return to Rotating Autoblocks ]

Single Rope Controller, Version C
(#725)

Front	Rear
Left	Right

Technical Details

I acquired my Wild Country Single Rope Controller, Version C from Mountain Tools in 1999.

My Version C is 105 mm. tall, 64 mm. wide, 29 mm. thick, and weighs 87 g. It consists of two irregular 4.0 mm. aluminum plates separated by three 12.7 mm. diameter, 16.0 mm. long bollards. Steel round-head machine screws hold it together. Each plate has an irregular slot for an HMS carabiner.

The front plate is stamped with a rigging illustration. The rear plate is stamped with "AAP," "SRC," "WILD COUNTRY," the Wild Country logo, and "BRITAIN."

Comments

Version C was sold with its own HMS carabiner that features a strange plastic lock that when used properly almost always guarantees that the carabiner does not open accidentally (although someone will find a way, so be careful). More important, the plastic lock helps keep the carabiner oriented properly. I prefer not to carry extra do-dads on serious climbs, but for "is-neither climbing" (i.e., sport climbing) it seems to work reasonably well.

[ Top | Movement | SRC v. A | SRC v. B | SRC v. D | Return to Rotating Autoblocks ]

Single Rope Controller, Version D
(#3967)

Front	Rear
Left	Right

Technical Details

I acquired this Wild Country Single Rope Controller on eBay from Maria Nasif in 2025.

My Version C is 106 mm. tall, 63 mm. wide, 29 mm. thick, and weighs 109 g. It consists of two irregular 4.0 mm. aluminum plates separated by three 12.7 mm. diameter, 16.0 mm. long bollards. Stainless steel round-head Allen machine screws in the front and a riveted post in the rear hold it together. Each plate has an irregular slot for an HMS carabiner.

The front plate is stamped with a rigging illustration. The rear plate is stamped with "AAP," "SRC," "WILD COUNTRY," the Wild Country logo, and "BRITAIN."

Comments

Aside from the method of holding the rear plate to the bollards, Version C and Version D are identical. It is not obvious why Version D weighs 25 percent more than Version C. Really, this is not an error on my part. The two plates have the same material, thickness, shape and dimensions, and the bollards have the same diameter and give the same plate separation. The switch from steel to stainless steel screws would not cause such a weight increase. I assume that there is something hidden in the internal bollard construction (such as a stainless steel shaft) that increased the weight so much, but I have not disassembled mine to verify this hypothesis.