INJORA Heavy 23g Brass Outer Portal Drive Housing Axle Cover for FMS 1/24 FCX24 1/18 FCX18 (FCX24-01)
Note: When working with some wheels, these counterweights may rub against the wheel, please use wheel extenders. I recommend the 6mm(+2mm) wheel hex extenders
Compatible with front and rear axles:

1/24 RC Crawler FMS FCX24
1/18 RC Crawler FMS FCX18

Features:

Precision CNC machined
Compatible with FCX24 FCX18 both front and rear axles
Made of brass, single weight is 23g, improve climbing performance
The black hard coating with chamfered edges adds a bright touch to your car, to prevent corrosion also

Specifications:

Part Number: FCX24-01
Material: Brass
Quantity: 2PCS
Outer Diameter: 23mm (0.91in)
Each Weight: 23g/pcs (0.81oz/pcs)

Package List:
2 * Outer Portal Drive Housings