Once these larger motors become common place, we will be able to buy them from one of the breakers such as Pinwall and the challenge to make one fit into our old retro scoots begins. For the naysayers of the radiator, it doesn't have to be mounted in such a obvious location to function properly. For what it costs to add just 20 HP and a few Lbs of torque to an 865, the price of a swap, may well be, quite competitive to our available options as of now.