The rim can get pressed laterally by the arm that touches it first. Easy enough to sort out, just move it until both shoes touch at the same time and the rim has no lateral movement. No need for the screw. Never touched it either.
Yeah, I'd always just loosen the allen key and centre the caliper then nip it back up.
@M_V 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.
The rim can get pressed laterally by the arm that touches it first. Easy enough to sort out, just move it until both shoes touch at the same time and the rim has no lateral movement. No need for the screw. Never touched it either.