You got a good modern geared bicycles, if you do want to have some project, the best way is to simply find an old bicycle and convert that to a singlespeed.
it's also a good way to not worry about whether you're messing up your current modern bike.
@edscoble started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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You got a good modern geared bicycles, if you do want to have some project, the best way is to simply find an old bicycle and convert that to a singlespeed.
it's also a good way to not worry about whether you're messing up your current modern bike.