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Old 06-11-19, 08:34 AM
  #80  
dddd
Ride, Wrench, Swap, Race
 
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Join Date: Jan 2010
Location: Northern California
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Bikes: Cheltenham-Pedersen racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.

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A broken SPD-sole shoe once caused my foot to come down into the front wheel spokes on the right side of the wheel, the rotating wheel then jacked my foot upward, throwing me off of the bike onto my left side.

Oddly enough, I was able to continue the ride, apparently since I lost most of my speed as the wheel was jacking my leg upward.
Not a single spoke broke or pulled out.

This wheel, with eight spokes ripped from the rim, appears to indicate severe overload occurred. But if one fork leg failed first and the wheel then twisted sideways, then it seems to me the wheel failure would be entirely asymmetric left-to-right, with spokes on one side failing but not on the other side. Odd here that the spokes aren't bent, seems they would be bent if the wheel ingested a solid object.

I am wondering how heavily that the bike was loaded, and possibly how a further impact load might have been generated.

Possibly an outer-ply failure of the tire, leading to an abrupt bulge, might have suddenly stopped the wheel from turning(?)

Last edited by dddd; 06-11-19 at 06:46 PM.
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