Description
- The Factory 4.1 RCT incorporates FMF’s Resonance Chamber Technology? both internally and externally
- In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering – moving the muffler closer to the motor to centralize mass
- The Factory 4.1 RCT is constructed from only aerospace grade materials that meet their exacting specifications and is manufactured 100% at their Southern California factory
- Massive Power gains throughout the RPM range.
- Huge weight savings
- RTS (Rapid Tuning System)
Yamaha — YZ 250 FX — (2020, 2021, 2022, 2023); Yamaha — YZ 250 F — (2021, 2022, 2024, 2023, 2019, 2020)
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