I thought I'd tap you guys for some possible information on a 10-tooth cassette cog. I remember that TNT made a lockring with a 10-tooth cog. Anyone know where I could pick one up these days? By the way don't worry about the application. It's for downhill and I can't alter front gearing or cassette spread. So if anyone has any ideas for a shimano compatible 10-tooth cog I'd love to hear them.