I know there’s a couple of dynamo enthusiasts on here.
I’ve been thinking it might be nice to have some dynamo driven running lights on my commuter just to be sure that if the battery driven LEDs give up for whatever reason, I’ve still got some sort of active illumination this winter.
I don’t want to spend loads really, and as good as they look having a wheel rebuilt with a Dynamo hub doesn’t appeal on cost grounds, that said “bottle type” roller on the rim/tyre dynamos’s look awful IMO, so I want another way of generating the leccy on the move…
I found a couple of more novel ones when googling last night; one that attached directly to the wheel’s spokes and has a reaction arm on the frame so it’s driven at the hub without significant modification to the wheel being required, and another one that’s attached at on the chainstay and driven by the chain (looked a bit mickey mouse TBH, but the idea has some merit)…
This all got me thinking, I use a flip flop hub on my commuter, could I have something attached to the “spare” NDS hub thread to drive a dynamo? chain/belt/spur/bevel gear driven with the dynamo attached to the Chain or seat stay, neatly tucked out of the way.
Surely someone has done this already? and if not, why not?
Dynamo Experts, please provide your input…