This is The Yeah Racing Traxxas TRX-4M Brass Upgrade Set. This optional set has all the ultimate upgrades for the TRX-4M all in one package. Constructed from high quality heavy weight brass to shift the weight and lower the center of gravity while increasing the durability of your TRX-4M where it is needed.

Features:

• Perfect fit for the TRX-4M
• Constructed from high quality brass
• Adds weight in key places
• Increases durability

Includes:

• (2) 6g Brass Hubs Carrier
• (2) 20g Brass Steering Knuckles
• (2) 13g Brass Differential Covers
• (2) 13g Brass Rear Axle Weights
• (4) Brass Hex Adapters
• Hardware