I acquired this rack from Pathfinder Sports in 1979.
My Pathfinder Sports rack is 306 mm. tall, 63 mm. wide, 26 mm. thick, and weighs 778 g. The frame is made from 9.7 mm. stainless steel bent into a U, with an internal width of 35 mm. There are six aluminum alloy brake bars. The bars are 25 mm. in diameter and 63 mm. long. The top two bars are solid, while the four bottom bars are tubular, to save weight. The top bar has a turned rope-centering groove. Hex and lock nuts secure the bars.
The rack uses adjustable spacers held in place by set screws, so they can be set wherever the user desires. Allowing 35 mm. for the rope leaves 109 mm. range for spreading the bars, minus whatever is lost by the position of the spacers.
There are no markings on this rack.
The Pathfinder Sports rack was loosely based on the Superack design, but uses six round bars. Since this rack has six bars, it can provide more friction than the original Superack, yet it weighs less (round bars are lighter than square ones of the same height).
I filed the groove in the second bar (it is not original).
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