The Prestone EXTENDED LIFE is what ya want. I haven't bought any in a while, but the last time..... it said silicate, phosphate and borate free - in the fine print on the back of the gallon jug.
That is what I use in my BMW, but I haven't seen any on the shelf lately.
07 GW ABS
91 BMW K75RT ABS
56 Harley FL ABS on front only