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MBX8R US Limited Edition Kit Parts







The new Mugen Seiki MBX8 ECO buggy has been tested and develop by the best drivers in the world and you’ll be able to get your hands on one soon! The team at Mugen Seiki spent a lot of time testing and developing the MBX8R ECO geometry in race conditions throughout 2021, which lead to many major victories. Ryan Maifield won The Dirt Nitro Challenge, Silver State Nitro Challenge, all in the same year! The MBX8R ECO has many new parts to increase stability, rear traction, improved jumping, and have a wide tuning range.
Suspension:
New suspension mounts and geometry. The MBX8R uses new narrow RF (C) and RR (D) pivot blocks with new pivot inserts for increased tuneability. New longer box-shaped suspension arms and arm stiffeners. The rear arm uses an impact resistant material for increased durability. Adjusting the hardness of the lower suspension arms is possible with optional CFRP plates. The rear uprights are also new for the MBX8R. The molded uprights have CFRP plates to adjust rear roll center.
New front shock tower and upper front arm mount use new pivot inserts for increased tuneability
Chassis:
The MBX8R chassis features a slightly new design to accommodate the new suspension geometry.
Differential and drivetrain:
High Traction Differentials are included in the MBX8R. The Mugen Seiki HTD provides increased acceleration, longer runtime, and more consistent handling. The HTD’s also increase stability, traction and improve handling in bumpy conditions. The HTD has a new larger volume diff cup to increase consistency during long main events. This makes it easier to time rhythm sections, better in bumpy and low grip conditions, helps to increase traction, and increases fuel mileage. The MBX8R comes with 12T bevel gear and 42T conical gears and 46T spur gear in the kit.
New wing and wing mount.
Lightweight high down-force wing allows more air to flow to improve jumping. The new IFMAR legal wing is durable, lightweight, and very stable on the track and in the air.
-Revised rear wing mount will provide additional downforce and increase durability. CFRP wing plate will be available as an option part.
-New S bent air filter boot and high-volume filter housing.
-New brake override and caliper springs for smoother more consistent braking.
-New 90-degree fuel tank fitting for cleaner fuel line routing.
-New sway bar collars to reduce sway bar movement.
-Emulsion shock caps are included in the MBX8R kit.