BrickLink - Part 86652c01 : LEGO Wheel 43.2mm D. x 18mm - Flush Axle Stem with Black Tire 62.4 x 20 S (86652 / 32019) [Wheel & Tire Assembly] - BrickLink Reference Catalog
LEGO® Technic Rad / Felge 43,2 X 18 mm Mittelsteingrau (MED. ST. GRAY) - (4551421/86652)
BrickLink - Part 86652 : LEGO Wheel 43.2mm D. x 18mm - Flush Axle Stem [Wheel] - BrickLink Reference Catalog