• Overall length is very similar, Stronglight 130mm vs Phillips/BW 128mm. The LHS is also very similar but the centre of the Stronglight is longer and RHS shorter.

    I'm no bike mechanic but my puzzling it out comes to this - your BW fixed cup will be screwed in the same depth whatever axle, and lining up RHS cones the beds for the cotters on the RHS line up, so guess you'll have similar chain stay clearance etc. The adjustable cup will be 3.5mm less screwed in and also the left crank further out than with the BW axle.

    The "A" on the Stronglight axle means it's for English dimensions. In the 1958 Stronglight catalogue axle length 132 is for doubles, not sure what 130 is for! Not sure why the center is bigger on the Stronglight, afaik both use 1/4" balls, eyeballing some cups it does look like the BW ball track is more 'banked' so the balls would sit further inside the cup. I dunno. Think this is in the suck it and see category of bicycle mechanics :)

    I think if it was me I'd probaly hold out for a BW axle, but you are very welcome to this one :D

    Pics are with the RHS cone/shoulder lined up.

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