Bob Jonkman#BikeNite A6: I read about this dual chain, dual speed bike hub a few months ago. The article I read wasn't kind. And @nickzoic hits the main problem: It's patented, proprietary technology. While that may be OK for wealthy cyclists living within shipping range of a licenced repair depot, it's particularly ill-suited to poor, remotely located, developing countries. A bog-standard bike with parts interchangeable with most other bikes is better suitec there.
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