You should leave the lock ring on, below the point your sawing of. This way when you've finished sawing you can undo lock ring and clear threads that might have been damaged whilst sawing.
@stupidpony started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
You should leave the lock ring on, below the point your sawing of. This way when you've finished sawing you can undo lock ring and clear threads that might have been damaged whilst sawing.