136Rs came on a lot of Peugeots. On a related note, I recently was given a set of 240s-- long-cage versions of the 460s-- and was moderately happy to find that both dust caps were included and intact. Very good pedals, overall; though the spindles on the lower-end versions, we're coming to find, may be slightly prone to bending and breakage. But the races and cones are good hard steel, and the dust caps do their job every bit as well as can be expected. So find one!