Did you know that the 2026 Yamaha YZ450F comes standard with a heavier flywheel (over the 2025). With that being said we did go to an aftermarket heavier flywheel weight in 2025 (Bundy Built Flywheel) for better control of the power, so we decided to try all of the different sizes/options while we were in … Continue reading Optional Yamaha YZ450F Flywheel Weights Tested