Originally Posted by
benze
When it comes to dynamos, I think one of my questions to ppl who swear by them is if you feel a difference in the ride having the extra dynamo in the hub, vs a regular wheel. Is the drag, or the extra energy used to power the dynamo something you feel? Obviously, there is some extra energy that is required to power a dynamo vs a battery light, but is it even significant/a factor?
It depends on the quality of the dynamo. Higher end dynamos like the Alfine, Deore XT, SON, SP Dynamo have drags that are barely noticeable.
Originally Posted by
benze
When it comes to Day Safety, how many people actually ride with lights on? There is a bike sharing program here (Bixi) that have dynamo front mounted flashing leds that are always on, but short of them, I don't think I have seen any cyclists in town ride with running daytime lights. Does it really make a difference?
I see folks with battery lights flashing during the day, personally, I leave the dynamo light on most of the time, even during the daylight.