I much prefer dynamo hubs to any other system I've used, but others who don't want the cost or expense of dynamo hubs and who don't ride long distances at night might consider bottle and bb-area dynamos. I've only used (a) cheap Union and Sanyo bottles and (b) very expensive, top-end 12 v bottle. The former do indeed drag; consider that you are riding into a 12 mph headwind, or up a slight grade; gear down 1 tooth. The 12 volt dragged very little but is not relevant. The old Sanyo bb-area dynamos are still available from time to time on ebay and on lists and they drag less if you use a smooth tire. Both bottles and bb dynamos will power a modern led lamp very nicely; I used a bb dynamo on the folder until I finally swapped in a hub dynamo.
Velogical makes a rim-driven "bottle" that puts out less power but puts out enough for most modern LED headlights; and it is very light and drags little from what I have read. Patrick Moore who has 3 bikes of 4 with hub dynamos but who is saving his bb generator just in case. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
