Yes it is illegal.
It's only legal if you have a front brake.
The lockring may be in references to certain velodromes in the UK requiring that the bike should at least have a lockring to hold the cog in place.
#threadend
@edscoble started
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Yes it is illegal.
It's only legal if you have a front brake.
The lockring may be in references to certain velodromes in the UK requiring that the bike should at least have a lockring to hold the cog in place.
#threadend