Early models of the Yamaha MT-09, however, were panned for their suspension setup, but they’ve been praised for their engine and package overall. Riders complained of the forks diving under braking and generally a lack of refinement in how the suspension feels. In the years since, Yamaha made improvements, but whether the stock suspension is sufficient for aggressive riding, or for larger riders, is still up for debate. There are those owners that claim aftermarket upgrades are the way to go, while others who swear the stock setup is just fine for street use. When the discussion touches on whether Yamaha purposely left wiggle room for improvement to maintain a base price competitive, or is simply different rider, different style.