The most severe hill gradient is the one which an 8 hp Renault with a driver and passenger; and two suitcases of luggage needs help to climb.
Less severe gradients are determined by the gear ratio the Renault needs to be in to ascend the gradient.
A "Serious cyclist" will know who was driving the car.
Less severe gradients are determined by the gear ratio the Renault needs to be in to ascend the gradient.
A "Serious cyclist" will know who was driving the car.