Carisma - Assembled Pro Differentials w/ Metal Gears, for Carisma M40S Paint & Supplies Airbrush Accessories Adjustable gear ratio : 3-speed

Adjustable gear ratio : 3-speed transmission

in this case put the switch in the NiMH position

Hardened Clutch Bell

One Hardened Differential Locker Gear

width: 104mm

Carisma - Assembled Pro Differentials w/ Metal Gears, for Carisma M40S Paint & Supplies Airbrush Accessories Adjustable gear ratio : 3-speedFor 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.