Depends on what you're using the bike for, but if you intend on slowing yourself down using the drivechain then yeah, otherwise you're likely to remove the cog when doing so.
Grrr ok so basically if I want to use that have to keep it single speed? Thanks
Fixed with out a lock ring works ok as long as you never skid. Small amounts of leg resistance aren’t usually enough to unscrew it once it’s dug in.
@HalfAnOnionBhaji started
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Depends on what you're using the bike for, but if you intend on slowing yourself down using the drivechain then yeah, otherwise you're likely to remove the cog when doing so.