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Pro-X Racing Parts Mikuni Main Jet Assortment Kits

Whether you're rejetting for altitude changes, adjusting for aftermarket modifications, or optimizing your bike's fuel-air ratio, Pro-X main jets deliver precision sizing, consistent fuel metering, and race-proven reliability. With strict quality control and precision machining, these jets eliminate bogging, improve fuel efficiency, and enhance overall engine responsiveness, making them the go-to choice for racers, mechanics, and performance enthusiasts seeking peak power and throttle precision. Pro-X Racing Mikuni main jets will fit many Mikuni carburetors, like Mikuni VM Roundslide and TMX, RS carbs, and they offer a wide range of jets for 4/042, N100.604, N102/221 and VM11/22 Series Mikuni carburetors. Pro-X main jets are manufactured in Japan to exact OEM specifications and are offered as a cost efficient alternative for the relative expensive original parts. Fine-tune your carburetor using Pro-X jets. Select the jet sizes needed for your off-road ride.

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