If you think your light is too bright, it is. Dip it. It's a shame lots of car drivers can't/won't think. I'm sick of having main beam headlights in my eyes on the dark roads.
@Cranky 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.