Tamiya has released TD4 20T Metal Bevel Gea4pcs under category
This metal bevel gear set is for use on the TD4 4WD chassis (Super Avante). It replaces the standard plastic gear, which will allow you to install motors with more power and torque.
• TD4 20T Metal Bevel Gears x4
• These gears are molded in tough cast metal alloy, which enhance durability and facilitate transmission of greater power.
• Compatible with Item 58507 (1/10 R/C DB02 Leonis), TD4 and TB-04 chassis cars. (Not compatible with TD2 chassis cars.)