A torque figure in isolation is pretty meaningless in terms of giving an indication of power. Power (P) is the product of torque (T) multiplied by the rate at which the the motor or wheel rotates (W). The rate of rotation for this calculation is measured in radians per second and is known as the angular velocity. There are 2 x Pi radians in one revolution, so a motor shaft or wheel rotating at 1 revolution per second will have an angular velocity of 2 x Pi radians per second (Pi = 3.142) so 6.284 radians per second (W)
Taking Power (P) = torque (T) x angular velocity (W)
Therefore, Torque (T)= P/W . If (P), the motor power is fixed at say 250 Watts, by altering W, the output torque is also varied. If W is lowered (reduction gearing, slower bike) torque (T) will increase (better hill climber) And if W is increased by high gearing (fast bike) torque (T) will reduce (poor hill climbing). This is why crank drive bikes are so versatile, you can vary the W part of the equation with the bikes gears.
So, returning to your original point, torque in isolation is not any indication of the power which a motor delivers for the reasons given above.