I ran my Alfine hub for 165 miles of racing this weekend, including some rain and 2 massively muddy laps. The hub worked flawlessly, continuing to function while other people were having broken derailleur, chain, and dropout issues.
The only real issue I had was the inability to twist the twist shifter when things got insanely muddy. I could have used a shifter with more aggressive fins.
I also had some chain derailments in the massively muddy laps, but that was really insufficient chain tension.
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