Variants of a mold are catalogued separately, so each one has its own sets and minifigs. Check these too if something you expect is missing here.

• 55981 Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes this part is a alternate of it
• 30391 Tyre 30.4 x 14 Offset Tread this part is a pair of it
• 30648 Tyre 24 x 14 Shallow Tread (Tread Small Hub) this part is a pair of it
• 35578 Tyre Offroad 37 x 14 this part is a pair of it
• 43903 Tread Small (20 Links) this part is a pair of it
• 56891 Tyre 37 x 18 R Balloon this part is a pair of it
• 58090 Tyre 30.4 x 14 VR Solid this part is a pair of it
• 62359 Wheel Cover 7 Spoke for Wheel 55982 Pair of this part
• 62701 Wheel Cover 9 Spoke - 24mm D. this part is a pair of it
• 71965 Tread Medium (28 Links) this part is a pair of it
• 89201 Tyre 24 x 14 Shallow Tread (Tread Small Hub), Band Around Center of Tread this part is a pair of it
• 92402 Tyre 30.4 x 14 Offset Tread [Centre Band] this part is a pair of it