Motocross Action Magazine dives in deep into the rookie Haiden Deegan Yamaha YZ250F with mechanic Brent Duffe. Haiden has finally made his highly anticipated pro debut and we wanted to learn what makes up his race bike. Delran plugs, back up start button, secret map switches, sub-frame mods, -10m back foot-pegs, different length shock shaft, custom FMF pipe, titanium front axle, works chassis labs engine mounts, custom altered pro taper grips, and more. You don’t want to miss this one!
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