FMF Factory 4.1 Slip-On Exhaust For Kawasaki | 042286 Alpinestars 2025 2021 - 250 RR (RE)

2021 - 250 RR (RE)

This optimizes rear wheel traction

Chain Guide pads lower surface drag and chain plate wear

CRF110F 12-18

- KTM SX-F 250 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

FMF Factory 4.1 Slip-On Exhaust For Kawasaki | 042286 Alpinestars 2025 2021 - 250 RR (RE)The Factory 4. 1 RCT incorporates the latest in FMF Resonance Chamber Technology both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our 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 our exacting specifications and is manufactured 100% at