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Was thinking about a cell phone charger for use while touring and came across a few chargers that use the against the tire dynamo. Had a couple of concerns with this solution: 1. drag created by the dynamo pressing against the tire, and 2. wear on the tire sidewall. I've read about dynamo hubs and looked for them in Google.

I found the Shimano Capreo DH-703 which seemed like it would do the job as power generator. However, I've not been able to find anyone in the US who is carrying this hub. Does anyone know if there are safety issues over and above those of the "old" style dynamo?

Stuart "LongKayak" Nottingham
 

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Tern was started by ex-Dahon employees - it's an ugly story.

I saw a hub today that will charge your devices, and you can switch the charger off at the hub for less drag.
 
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