Not much info out there on the net and cant even find a reliable source to buy them from. Not a very convincing purchase. As they all look different i could end up paying top dollar for a chinese copy.
I just replaced my RR and Stator with racetech electric products, I found it on Amazon for 100 shipped for both with gasket. I have very little miles like 150 or so and no problems yet. The new Mosfet RR is larger than the stock one I took off and works really well very steady volts at idle and at 5K rpm.