What kind of materials cant a magnet attract??
on a stock motocross bike, it's usually going to be around 30%.
A magnet can only attract magnetic material- nickel, iron and cobalt. All other materials are not attracted to magnets.
aluminum, brass, copper, magnesium, stainles steel, none of these are magnetic
paper, pencil (lead), pens (some.most), plastic, etc things like metal and copeer and stuff like that are attracted to the magnet
I know that the front brake supplies more power than the rear, but I don't know how much. Maybe the folks in the motorcycle forum (CarsTransportation, Motorcycles) may know.