Just got my new lockring and tools in so I'm thinking of taking the fixie out on the Silver Comet tomorrow. I've had forces against me the last two attempts. On the first, I ripped the lockring off the hub by locking the rear wheel up. That was at the entrance of the 2.6 mile mark trail head. It was a crap lockring though and I put it on with subpar tools. On the second attempt, I rode with a freewheel and it stormed on me. I got about 2 miles of riding in. Third time is the charm so they say.