Two-Stroke vs. Four-Stroke: KTM 150 SX vs. KTM 250 SX-F

When it comes to two vs. four with the small bikes, a 125 will pretty much always be outgunned by a 250F. Last time, we had a Yamaha YZ125 that was built up by Pro Circuit versus a completely stock YZ250F to see if that gap would be a little smaller. To check out that video click here - This time, instead of modifying a 125 two-stroke, we just went with a bigger bike. The KTM 150 SX is nearly identical to the 125 SX, just with displacement achieved by a 58mm bore cylinde
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