BITD, For Cobbled/ farm roads the fork blades had a Tight radius J bend at the tip,
and on the nicer ones, 531 fork tubes were quite thin wall ..
so they did take up some road roughness.. that was like in the 50's..

interestingly the German Tout Terrain Forks had 1 blade larger on the left,
so as to compensate for the additional forces, of the caliper on the fork tip.


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