The 150 SX is a 192lb dirtbike manufactured by KTM. It’s 143cc engine and light weight give the KTM 150 SX a top speed of 73MPH in stock condition. Reliable, affordable and with many performance specs ...

Many factors can contribute to the potential top speed of a dirt bike. Dirt bikes are equipped with either 2-stroke engines or 4-stroke engines. If you ever spot a 2-stroke dirt bike, you would likely ...