This is an optional Mugen 40 Gram Chassis Weight. This weight mounts to the back of the front gearbox or in front of the rear gear box on the MBX7R and MBX7TR nitro vehicles. For use with the electric ECO models, this weight can only be mounted in the back of the front gearbox.
This weight will help increase the steering and traction in low grip conditions, and can also be used to adjust the balance of the front and rear when cornering.
To further tuning options, Mugen offers this weight in 20 grams (MUGE2419).
Note: Two 3.8mm mounting screws are required.
