Never heard this website…
3dpbs is legit. It's a fella in Germany who arranges 3D printing of metal parts for a lot of European frame builders. He tried to launch a bottle cage business last year but it doesn't look to have taken off.
@Albb 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.
Never heard this website…