2025 Yz450fx Review. Kris keefer and steve matthes head out to glen helen raceway to ride the 2025 yamaha yz450f. 5.0 nm spring rates return, though new longer and softer pressure springs can.

Reviews, ratings, specifications, weight, price and more for the 2025 yamaha yz450fx bike I made a few personal modifications to it that would hopefully get me around the racecourse faster than at least a few.