Seen this post: http://www.ukgser.com/forums/showpost.php?p=1349576&postcount=24 




In reality 400w should be more than adequate for a single cyl bike i.e. you only have a fuel pump and ignition and intermittent lights No servo ABS or stiff like that even heated grips don't draw that much currect?
ABS does not use power unless it's working and at that stage you won't give a feck about a flat batteryThinking of the new twin cylinder 650 / 800 job ... which on high beam is using twice as much in terms of light power (now that they have separate high and lows) than the old 650 with its single H4 bulb. And if I do get ABS and heated grips (and maybe even a heated vest), then I am wondering how it will cope with additional fogs and driving lights.

Maybe they do something similar for the rotax??? In reality 400w should be more than adequate for a single cyl bike i.e. you only have a fuel pump and ignition and intermittent lights No servo ABS or stiff like that even heated grips don't draw that much currect?

I am now thinking of building my own custom headlight unit, with a pair of Audi A6 bi-xenon projectors (hi / low) with 50 watt HIDs in them. Wrap some BMW car "angel eyes" parking lights around them. Having two HID's on low beam should do away with the need for fogs. That takes care of standard lighting for about 105 watts.
100 watts for a pair of 50w HID spots.
Then its the bike itself (probably an average of 20-30 watts for all the assorted electronics - ECU, ABS, indicators, trip computer etc etc)
GPS, heated vest, battery charger ... yep should just fit within the 400w when in winter with spot lights on.
Only trick with that is going to be how the canbus reacts to having 100 watt consumption on low beam.
