jtgotsjets;
Good points on the cost savings over a hub dynamo. IMO the hub dynamo is the way to go if you are a commuter or randonneur who does lots of night riding but is overkill for occasional night riding use.
Current LED light technology can give LOTS more light than older dynamo lights. The latest version of the Supernova E3 Pro light claims an output of 375 Lumens. Unfortunately Peter White does not expect to have them in till about November.
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Gear Hubs Owned: Rohloff disc brake, SRAM iM9 disc brake, SRAM P5 freewheel, Sachs Torpedo 3 speed freewheel, NuVinci CVT, Shimano Alfine SG S-501, Sturmey Archer S5-2 Alloy. Other: 83 Colnago Super Record, Univega Via De Oro
Visit and join the Yahoo Geared Hub Bikes group for support and links.
http://groups.yahoo.com/group/Geared_hub_bikes/