Just found a crack originating in the spoke hole on a shimano 600 hub. There is one almost as big on the other flange as well. This on my do it all road bike. Is this a common failure? Was it commuting over pot holes, rough terrain over the mountains, dirt tracks in the park? Its tensioned to 70 kg/f. Ridden with 28mm rolly polly tires. Any suggestions to keep from blowing up my wheel in the future (after I replace the hub).
P1040586 by vagmcgina, on Flickr
P1040589 by vagmcgina, on Flickr