An ideal rower will be tall and powerful, so as to both obtain the best leverage on the oar as it extends through the rowing stroke. A typical male Olympic rower in the men's eight will be over 6 ft 3 in tall (1.8 m) and weigh over 230 lb (105 kg). Height usually will provide the rower with a more optimum strength-to-weight ratio; the lighter the boat crew, the faster the boat will go provided the amount of power remains constant. The speed of the boat is the product of the available power, less the resistance to the boat as it moves through the water; the heavier the craft, including its occupants, the generally greater the degree of resistance against the water.