Originally Posted by
juvela
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dimpled blades for tyre clearnance were a common thing at OEM for decades
one manufacturer who continued to use them after most others had ceased was Puch/Steyr of Graz Austria
often wondered if maybe their buyer had gotten a great deal on them at some point BITD and so they continued to use them until all gone...
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The question is whether it's a bad idea to dimple the top of fork blades in the heat-affected zone, I think. The fork blades for the manufacturer(s) you referenced undoubtedly dimpled the blades before brazing them into the crown.