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Keefer sits down with Jamie Ellis from Twisted Development to talk about the secret under the fuel tanks of some professional MX/SX teams. Can you tame down the YZ450F enough to ride it harder/longer? Is the cost of this throttle body felt enough on the track? What other teams are using an aftermarket throttle body on their bikes? What exactly is the difference between an RP throttle body and a stock one? All of this broken down and more in this episode!
