Next Return Previous

Climbing Technology Quick Step

Version A Version B
Version A Version B

Overview


Version A
(#1949, 2231/2232)

Left Front Right Front
Left Front Right Front
 
Left Rear Right Rear
Left Rear Right Rear
 
Left Front: Open for Rigging Right Front: Open for Rigging
Left Front: Open for Rigging Right Front: Open for Rigging
 
Left Rear: Open for Rigging Right Rear: Open for Rigging
Left Rear: Open for Rigging Right Rear: Open for Rigging

Technical Details

I acquired a left-foot ascender from Knot & Rope Supply from Amazon.com in 2013. I acquired another left and a right in 2017 as part of Bob Thrun's collection.

The ascender consists of a stamped, anodized aluminum shell, a cam assembly, and a set of straps and buckles. It is 51 mm. tall, 73 mm. wide, 27 mm. thick, and weighs 130 g. bare and 165 g. including the harness. The rope channel is 15 mm. wide, and is 50 mm. from the cam pivot. The cam is spring-loaded and has a (3.2.4)(1H1.2)^3(1.2.2) tooth pattern. The cam radius increases from 37 to 55 mm. over an angle of 42°, giving a 28° cam angle. A spring-loaded manual safety hook is attached to the side of the cam. The normal action of the spring holds the safety against the cam. When the cam is opened, the shell interferes with the safety hook, thus preventing opening the cam. If the safety hook is moved away from the cam (opposing the spring), it will clear the shell and the cam will open. At full open the safety can be released and the spring will hold the safety against the back of the shell. This provides a means of locking the cam open. A pin on the safety assists in operating the safety mechanism. Slots in a separate plate riveted to the back of the shell accept webbing straps. An ankle strap slides freely, and an under-foot strap is sewn in place. Both straps have adjustment buckles.

The front of the ascender is screened with the Climbing Technology logo, "climbing technology," an arrow pointing up, "ROPE," "Ø 8÷13 mm," "Max 150 kg," "Made in Italy," a book-with-an-"i" icon, an "L" inside a circle ("R" on the right foot ascender), and "0112."

Comments

My first one was clearly a Climbing Technology Quick Step ascender, but it was repackaged in Knot & Rope packaging.

I am not sure why Climbing Technology chose to have a separate plate for attaching the straps, instead of using slots in the shell like several others do. Perhaps it was due to patent issues. In any case, either method works.

Foot ascenders such as this don't fit into the climbing systems that I commonly use, although I have met froggers that seem to like them. The CMI cam safety keeps the cam from opening accidentally. The Climbing Technology is nicely made, and if you take time to learn it, it should work well.


Version B
(#2300/1986)

Left Front Right Front
Left Front Right Front
 
Left Rear Right Rear
Left Rear Right Rear

Technical Details

I acquired my right-foot Version B from Expé-Spelemat in 2014. The left-footed one is somewhat of a cheat created for display purposes: I acquired a Version A from Pinnacle Arborist Supplies through Amazon.com in 2017, and removed the safety from the cam.

Version B is 51 mm. tall, 73 mm. wide, 27 mm. thick, and weighs 125 g. Version B omits the cam safety.

The markings on my Version B are the same as on my Version A except that the front has "R" inside a circle instead of "L" and "0314" instead of "0112."

Comments

Some other foot ascenders like the Petzl Pantin, lacked safeties. When first playing with these, I found that each step caused the ascender to come off the rope. Improved technique solves the problem. Strictly speaking, the safety is not necessary, but some folks my prefer to have one and will miss its omission on this version.