Hmmm, im not sure how much I'd trust foil for a seatpost, I have some brass though so I might try that.
Coke can aluminium is about 0.15mm thick. Two full turns of that and you'll be up to the correct diameter.
@Lukas 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.
Hmmm, im not sure how much I'd trust foil for a seatpost, I have some brass though so I might try that.