Can anyone confirm whether this would be an adequate header tank for my zx12-r it doesnt seem that big.

http://cgi.ebay.co.uk/Handmade-Alloy-Water-Header-Tank_W0QQitemZ8060906662QQcategoryZ72205QQrdZ1QQcmdZViewItem

Yup I purchased one a while back.

Ideal for bikes - not so ideal for ZETECs

Its personal choice but I prefer clear plastic as you can see levels at a glance without releasing any pressure, you can also see coolant seeping back thru the bypass hose too confirm circulation, maybe I'm just paranoid ?

The answer to your question is as already stated, yes.

you're not the only one jon

I've got one of those too !

hmmm i didnt think about that aspect of it i just like the look of them.

Got me thinking now

if i welded some kinda clear sight level tube on the side like on some of the alloy catch tanks , would this help me see the circulation or would the level not move enough to see if its working ?