These are Traxxas Tire Wheel Assembled Glue SCT Split-Spoke Black.

Features:

• Fits the rear of 2WD short course trucks and the front and rear of 4WD short course trucks
• Split-spoke beadlock style wheels, black spokes and satin chrome beadlock detail (beadlocks are non-functional)
• Dual profile wheels 2.2 outer diameter, 3.0 inner diameter
• Tires with foam inserts and off-road racing tread
• Traxxas Stability Management (TSM) rated

Includes: Two Assembled Traxxas SCT Tires and Wheels

Specs:
Diameter: 4.4 (111mm)
Width: 1.53 (39mm)
Hex Size: 12mm