82.5mm (3.25") x 29mm Treaded Lightweight Polyurethane Wheels for 4mm Axle (2 Pack) from Du-Bro - DUB325TL
After 3 years of research and development, Du-Bro has produced the RC tire for the 21st Century. These new wheels are lightweight, shock absorbing, fuel resistant and built extremely tough!
Features:

Built extremely tough
Lightweight
Shock absorbing
Fuel resistant
2 per package