XRay 305006 T3R T2R PRO Composite ball diff, rubber spec, set.

Complete composite ball differential set is a high-competition, super-smooth differential molded from strong, lightweight composite material for extra strength and long life. The ball differential features lightened 34T pulleys with special "side click-covers". Internal components include high-quality balls and shims for ultra-smooth operation and durability.

Takes the 3mm blades. (305240).