Kawasaki 250 Ninja, perfect beginners bike, perfect girls bike, excellent bike, reliable, excellent performance, sips gas, excellent resale value, easy to ride, light as a feather, top speed of 105mph, can out accelerate any Harley, easy to maintain, a simple gas and go bike, check the tire air pressure once in a while.
cons: insurance cost may be high for a female, the 250 Ninja is despicable to wind blasts from passing semi trucks