Old 01-22-20, 10:14 AM
aka mattio
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the fixed gear thing that screws onto freewheel threads is designed to put your cog onto the correct chainline (distance from the bike's centerline). you could loctite it on and get some insurance against unscrewing it while backpedaling, i guess. though worth noting that plenty of track racers don't bother with lockrings in the first place.
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