Disc brake front fender - fork mount measurement
Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models
I extracted this information from Charley Cole of Zydeco Racing on the Yahoo! Loopframe_Guzzi news group.
The distance from the top of the upper fork mounting hole to the edge of the fender is exactly 4.5 inch. This is from a 1974 Eldorado Police disk front.
This measurement is useful when converting a drum brake fender to fit on a disc brake front end.