I dont know the ampage either, but I bought the yamaha pattern part from Wemoto for the XTZ750 super tenere and it works great, it was £27 plus postage.
appreicate that... i think the Yam & Wemoto ones are 100A... so i guess il go for the Aprilia 150A... size counts... apparentley... i just remind her im just poking the fire & not looking at the mantlepiece !! :biggrin