I agree with what some of what BooBoo said in his last post that this the 24v is definately not something for constant use. I run with this C5 mainly on 12v as it was meant to be used(probably 85 to 90% of the time) and only ever use the 24v on flat roads and once I have built up speed on the 12v first to put less pressure on the gear box. It has had a brand new motor & gearbox fitted last year as I believe I mentioned in an earlier post & the one before that lasted from 2004 to 2011 so not bad at 7 years. Also the reason that the other one failed was because it had dropped out of the motor casing lugs and therefore was twisted which then put too much pressure on the gearbox. I don't even think it went when I was running on 24v, but when I was running on 12v. But I cannot be 100% sure of that.
As today has been nice weather and because last weekend was crap I have dragged the Mrs out with me to shoot a little video of the C5 to show everone it is fully working as the last video on Youtube didnt show it working (it just showed some of the other toys, twin air horn & alarm). The quality on this video is not great as it was shot on a phone camera but at least you can see the C5 does work.
I am hopiing the C5 goes to a new loving home and someone on here, but buy it because it is a fully working C5 in nice condition with many fitted extras (Twin air horn, alarm, blue neon tube, original wing mirrors, original indicators, new tyres & inner tubes, batteries x3 and two maintaince chargers etc) and working as it should on 12v. But also because of the added 24v addition for occasional use, dont buy it just for the 24v (although a nice toy all the same to show off every now and then - on private roads or at shows).
If you take that philosify I dont think you can then go far wrong in my opinion.
Chris
http://www.youtube.com/watch?v=GxECBGSbUVs&feature=g-upl&context=G2e08efaAUAAAAAAAAAA