TruVert 15 degree Angled Handlebar Riser for Yamaha, 3" vertical rise, CHROME PLATED with all required M8 hardware. The 15 degree block can be used on Yamaha applications with a FLAT PLATE STEERING POST on models such as SRX, SXR, Mountain Max, MM, Exciter, Phazer, Viper. NO EXTENSIONS will be needed for 2-stroke models. The 15 degree block is better suited for riders with smaller frames on all models. BEST on newer 4-stroke models such as Attack, Apex, but throttle extension will be needed.