Optional heavy-duty internal gear set for the R1B gear differential. This set replaces the standard plastic sun and planet gears, as well as the cross pins.

Key Features and Specifications:

• R1 Wurks genuine option part
• Lightweight 7075 T6 aluminum cross pins with hard anodizing 
• Durable sintered metal gears

Includes:

• x2 Cross pin, Aluminum 
• x4 Planet gear, metal, 10T
• x2 Sun gear, metal, 18T