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Bicycle design eliminates chain, derailleur and sprocket

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22:00 June 19, 2006

Bicycle design eliminates chain, derailleur and sprocket

Bicycle design eliminates chain, derailleur and sprocket

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June 20, 2006 Most childhoods would be incomplete without an incident involving lost skin and a bicycle. Indeed, given that the bicycle is the world’s favourite means of transport (more than 100 million bicycles are sold each year – double the number of cars) and they all feature a highly-efficient but potentially dangerous chain drive, we’d suspect that most people will have had an unfortunate recollection of an incident involving a de-railed chain, lost skin, grease and perhaps a destroyed garment or two. So we like the idea of a bicycle without a chain. US-based Dynacraft has introduced just such a beastie - the Dekra-D Drive bike has an internal drive shaft which offers less maintenance, greater safety and a cleaner solution than a conventional chain-driven bike by replacing the parts of the bike that cause the most problems and require the most maintenance - the chain and derailleur.

The Dekra D-Drive comfort bike retails for US$300.00.

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About the Author
Mike Hanlon
Mike Hanlon
Mike grew up thinking he would become a mathematician, accidentally started motorcycle racing, got a job writing road tests for a motorcycle magazine while at university, and became a writer. He went on to edit or manage over 50 print publications before embracing the internet – a dozen start-ups later, he founded Gizmag. Now he can write again.


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