Talk:Hub dynamo
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[edit] Non-light usage
Hub dynamos can be used to power more than just lights. For example, some automatic shifting systems for bicycles are powered by a hub dynamo [1] [2]. In addition, they can be used to re-charge mobile phones, iPods, GPS devices, etc [3] (see BioLogic ReCharge). Citeoplasm 03:16, 7 August 2007 (UTC)
[edit] hub dynamo for braking
I wonder if I can use some stronger hub dynamo as a magnetic braking system for downhills. When you need to brake immediately you just press conventional brake.--Martian742 00:44, 29 September 2007 (UTC)