These are the All-Star 2.8" Black Chrome Front Nitro Wheels from Traxxas.
FEATURES: Black chrome wheels
Five spoke design
INCLUDES: Two All-Star 2.8" front nitro black chrome wheels
SPECS: Overall Diameter: 2.8" (71mm)
Width: 1.92" (49mm)
Axle Diameter: 7mm (0.28")