50.8mm (2") x 19mm Treaded PU Rubber Wheels for 3mm Axle (2 pack) from Du-Bro - DUB200T

Takes a 1/8 Axle (3mm). Du-Bro's low bounce captive air wheels have flown on more airplanes over the years than any other wheels on the market! The wall thickness is consistent throughout the wheel giving you a balanced tire. Comes complete with a sporty nylon metallic hub. Works well on grass & paved runways.

Features:

• 1/8" (3mm) axle diameter can be drilled out to 5/32" (4mm)
• Fits inside most wheel pans and retracts
• .750" width (19mm)
• Low bounce, shock absorbing