Originally Posted by unterhausen
not a bad idea, but it's pretty expensive. I probably would have ordered a SP dynamo from him had I not just ordered a Sanyo
Re Sunup Eco" generator; The new model is selling on ebay for 125USD w free shipping. That is about twice that of the newer "low cost" (~$50) dynohubs cost. But other than that one, most dyno hubs cost more up front...averaging about $270 each if one uses the PeterWhite site as a baseline. Then one has to build it into a wheel so more cost there. If one needs a 48-spoke dynohub, the newly available cheaper ones are not available in 48...only the $270 classic one leading to the solution being about $425. That is an ouch for most folks!
I suspect the Sunup is an attempt to be as good as the classic dyno hub but in a bolt-on solution requiring no mods to the basic bike. I have confirmed with the company that it is compatable from 16 to 48-spokes. So the total bill is 125USD which is more acceptable to me than $425. I was interested enough to just order one off ebay. I am adding a good head and tail light sourced from PeterWhite's site which I will use for whatever dyno I finally end up using.
For what it is worth: One of my desires was to see if it would work on the right side of the front fork...Based on data gathered so far, it seems that such will not be likely. The space from the spokes to the fork blades is quite a bit smaller than what seems to be the space required for the dyno. I will try it to confirm it one way or the other. Shame such a placement wasn't considered during design since it is the only readily available space for use on most bikes. The intended left rear spot is already in use in many bikes for a disk (or drum) brake. I have already passed that comment back to the company. Seems their market is mostly toward bikes with rim brakes (Canti's, V's, Centerpulls, etc.).
So standby for some testing results in about a week to 10 days.When the unit arrives, I'll give it a whirl and post pictures and data to the forums for all to examine and smile or snicker depending on your bent on such.