To find the speed of the motorcycle, we can calculate the unit rate (or speed) by dividing the total distance traveled by the total time taken.
The motorcycle traveled 300 miles in 4 hours:
\[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} = \frac{300 \text{ miles}}{4 \text{ hours}} = 75 \text{ miles per hour} \]
Now we can compare this speed to the speed limit of 65 miles per hour.
Since 75 miles per hour is faster than 65 miles per hour, we conclude that the motorcycle is going:
Faster than the speed limit.