I've plugged it in and it makes a whirring noise when you press the button - that's where my expertise ends! You're welcome to come and give it a whirl.
@Sparky 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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I've plugged it in and it makes a whirring noise when you press the button - that's where my expertise ends! You're welcome to come and give it a whirl.