Join Date: Jul 2002
Location: Oxford, UK or Mountain View, Ca
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Thanks to everyone for their posts, there is a lot of knowledge and experience out there.
To follow up on some points that have been raised:
I checked the Rigida website before posting, to identify the rim type and see if there was much info. There was nothing on recommended tire pressures. I had been running my tires at 90 to 100 psi (the max. rating for Hutchinson Excels)
Until the gross failure at one spoke hole, the wheel had run true without needing any alignment, so it is nothing that I have done to it through inexperienced maintenance. The wheels were a quite inexpensive, off the peg set so they may have been built with too much spoke tension in the first place.
There is also a galvanic action at work , because of the different metals in contact: galvanised spoke, plated brass eylet, and aluminum alloy rim. This is likely to be the cause of the corrosion at the spoke holes.
I will definitely not be riding on this wheel again, and will see if the bike shop are willing to help. I'll let you know how it goes.
Thanks again to all,
Get a bicycle. You will certainly not regret it, if you live.