Re: blew a tube. gah
I use double walled rims Rhino Lite. For a time I kept getting flats. The hole was always on the part of the tube nest to the spokes. The rims have brass sleeves for the spoke nipples to go through. Where the sleeves had been put in I notices little shards of metal around them. Sanded them down and now I don't get flats like I was before.
Land Rider Jerry