Nice to hear that the Cyo Premium performs well and beats out a 450 lumen "commuter / torch type" lamp but I'd rather like to hear how it might compare to something more common ( like the Solarstorm X2 ). While I don't use my SSX2 for the road while testing it I noticed that it provided a beam pattern very conducive for road use. Currently I use a Gloworm X2 on the bars for road which is more useful due to the mounting, wired remote and UI. Yep, if someone tells me one of the Dynamo lamps can beat out a single emitter XM-L lamp driven to full capacity THAT would impress me.

As to the Cyo beam pattern; Some people like the cut-off and beam pattern that are provided. I don't think I would have a major problem with it because I'm still going to use a torch on the helmet for those times when you need just a little more...BUT...I like the idea of a little light going off to the sides coming from my bar lamp. Where I live I ride areas where the deer like to munch on the foliage on the side of the road. As such I like a lamp that gives me some advance warning that "they're there". The lamps I currently use do that. I would hate to buy something as expensive as a dynamo set-up only to find that it can't provide an important safety feature that I feel I really need.