chainring

So I have a rear sprocket attached to an adapter that mounts onto a disc brake mount, and the chainring bolts that attach the sprocket to the adapter keep unscrewing themselves no matter what I do. I used threadlocker on them last week, and they still unscrewed themseves! They do it within a...

I have been searching for a larger front chainring for my a2b metro with no luck. I was wondering if anyone else out there is looking for a larger chainring that will just bolt up to the a2b crank as I plan on cnc machining one for my bike. If anyone is interested please pm me or email me...