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Results tagged with dynamo
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user 675
A dynamo converts mechanical energy to electrical energy.
2
votes
Bottle dynamo vs. hub dynamo
The main advantage of the bottle dynamo is that it introduces zero drag when not engaged. Bicycle Quarterly did an analysis of the drag from dynamos and a bottle dynamo back in 2005. … Of course, modern dynamo hubs have only improved, with the SON20 now branded as the SONdelux and the newer Shimano DH-3N81 having even less drag than the 3N71. …
- 7,594
8
votes
What kind of maintenance does a shimano dynamo hub need?
The common Shimano Dynamo hubs don't actually use sealed cartridge bearings, see the DH-3N71 and DH-3D72 techdocs. …
- 7,594