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.

• 49294 Wheel 56 x 34 Technic Racing Medium with 6 Pin Holes, Open Spokes Alternate of this part
• 15038 Wheel 56 x 34 Technic Racing Medium with 6 Pin Holes Mold of this part
• 23798 Tyre 107 x 44 Tractor Pair of this part
• 2997 Tyre 81.6 x 34 ZR Technic Straight Tread this part is a pair of it
• 4410 Tyre 81.6 x 44 Slick Pair of this part
• 4455 Tyre 87.9 x 36 Pair of this part
• 44771 Tyre 68.8 x 36 ZR this part is a pair of it
• 50965 Wheel Cover 5 Spoke with Centre Stud - 56mm D. Pair of this part
• 54120 Tyre 94.8 x 44 R Balloon this part is a pair of it
• 56907 Tyre 81.6 x 36 R this part is a pair of it
• 58088 Wheel Cover 7 Spoke with Axle Hole - 56mm D. [Fits 44772] Pair of this part
• 92912 Tyre 94.3 x 38 R this part is a pair of it