44 Horsepower KTM 150SX Two Stroke RAW - Motocross Action Magazine

#motocross #dirtbike #racing #twostroke
The 2021 KTM 125SX was our weapon of choice for the 125 Pro class at the 2021 Wiseco World Two-Stroke Championship, but because Glen Helen doesn’t want to worry about how to catch cheaters, they make the Pro class open to bikes up to 150cc. MXA already had a stock KTM 150SX, but instead of using it, I took the opportunity to double our 150cc inventory by obtaining a big-bore engine kit from KTM for our stock 2021 KTM 125SX. KTM’s 150 factory kit includes the cylinder, cylinder head, piston, power valve, combustion chamber insert, gasket control covers, ECU, control flap and rings and gaskets, all under one part number. Although KTM sells a complete 150SX motorcycle at the dealers, that bike is no different from what you get if you install this kit on your 125SX. At the end of the weekend, Mosiman got $1000 for third overall in the Pasha 125 Pro class, plus $250 in holeshot money. Plus, his 4-10 scores in the Open Pro class gave him another $300. Although he left money on the table with my mistake in the second Open Pro moto, Schnikey and he left with $750 each.



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