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 at low cost, what’s not to like? Overall KTM has managed to retain an excellent power to weight ratio on its very race friendly 150 SX series motocross bikes. Seat height is 38.8 inches.
I’ve written about how KTM has improved the quality of it’s line of dirt bikes since 2009. New bodywork on 2-stroke models, a new silencer, a new airbox and an optimized intake flange connecting to the carburetor are just a few of the changes I’ve been impressed with. In 2011 KTM dirt bike provided more horsepower from their 143.6cc engine than the 2009 model did which is proof of innovation. The 2016 and 2017 models raised the bar further.KTM
This KTM 150 SX dirt bike review wouldn’t be complete without a warning, you’ll want to squeeze the skinny frame between your knees when you open up to full throttle. KTM kept the price low by not offering extras like an electric kick start instead of by reducing engine performance and that’s OK with me.
In 2009 the KTM 150 SX Dirt Bike was a hit with young racers who enjoyed it’s power and agile handling characteristics. The 150sx is also simple to properly maintain. A single cylinder 2-stroke engine rated at 143.6cc with a 6 gear transmission and Keihin PWK-S 38 AG carburetor powers this dirt bike. Who says 2 strokes can’t perform against similar 4 stroke engines? The KTM 150 SX Dirt Bike takes on rough terrain without feeling sluggish and that’s quite an accomplishment for the price.