The supercross and motocross stars of tomorrow are made today. To further that process, the Ready To Race folks have released the 2021 KTM 50 SX Factory Edition. This is the highest performance version of KTM’s three-motorcycle lineup of 50s. Here’s what makes the 50 SX a Factory Edition.
1. The 2021 KTM 50 SX Factory Edition gets a full FMF exhaust system. That means an FMF Fatty pipe with an FMF PowerCore 2 muffler. The jetting has been changed to match the FMF system. According to KTM, this setup gives the motor an “optimized low to mid-range power curve while looking and sounding incredible.”
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https://ultimatemotorcycling.com/2020/08/03/2021-ktm-50-sx-factory-edition-first-look-10-fast-facts/
