M40S Assembled Pro Differentials w/ Metal Gears Adapters allowing the buggy to corner

allowing the buggy to corner faster on high-grip carpet and clay tracks

An integrated balance lead with XH connector is included

and soft rubber tires give the grip and performance needed to climb over the roughest terrain

High-impact case material

M40S Assembled Pro Differentials w/ Metal Gears Adapters allowing the buggy to cornerFor ultimate power delivery and improved durability. This is a must have option for the M40 series. A direct replacement over the old plastic differential gear set allows you to use a faster motor and more powerful batteries without damaging your drivetrain. Comes fully assembled with grease installed. Fits Carisma models: M40S, M40B, M40DT, M48S.