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Sturmey Archer HDS-22 6-Bolt Disc Dynamo Front Hub - Black - 36 Hole

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Front disc brake dynohub

- 6 Volt 2.4 Watt dynamo
- Sealed cartridge bearing
- Threaded axle
- 6-Bolt disc fitting
- Available in Black or Silver
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Questions & Answers (1)
Hub Dynamo For Block Brakes,. Price About £55. To Fit New Folding Machine.
15 Jul 2016
Would you please supply guidance on how a final choice could be made. 60 years ago I had a Raleigh with Stirmy Archer. This was an a. c. machine which expired when you stopped. It was unregulated so that if the front bulb blew, the back did too, leaving you without lights. Are things still the same please? £ watts - will this drive led lights??
SJS Customer Service:

The issues you had with previous systems would have been down to the lights rather than the dynamo, most modern lights have a stand-light feature which allows the light to remain on for a few minutes when you stop riding. As halogen rear lights piggy backed off front lights because they can't handle the direct output of the hub it means that if the front bulb blows all of the power then goes to the rear causing that to blow as well. LED lighting systems require much less power to achieve full brightness, but as this is hub is 2.4w rather than the standard 3w output it means its still only designed for use with front lights.