wheel is part of:

wheel contains:
    80%  hub
    80%  tire
    40%  wheel-axle
    10%  wheel-well

Full expansion for wheel:
   100%  Large Tiny-Peg Hub w/ Treaded Tires
   100%  Small Tiny-Peg Hub w/ Thin Tires
   100%  Small Tiny-Peg Hub w/ Treaded Tires
   100%  Small Tiny-Peg Hub w/ WideFlat Tires
   100%  2x2 FreeStyle Hub w/ Large Tires
   100%  2x2 FreeStyle Hub w/ Small Tires
   100%  2x2 Spoked Hub w/ Treaded Tires
   100%  2x2 Technic Cross-Axle Hub w/Lg.Tires
   100%  2x2 Technic Cross-Axle Hub w/Sm.Tires
   100%  2x2 Train Wheel
   100%  3.5x3.5 Spoked Wagon Wheel
   100%  3x3 Technic Hub w/ "30.4x14 VR" Tire
   100%  3x3 Technic Pulley w/ Tires
   100%  3x3x2 Treaded Hollow Space Wheel
   100%  4.5x4.5 Spoked Wagon Wheel
   100%  4x4 Technic Hub w/ "13x24" Tire
   100%  4x4 Technic Hub w/ "43.2x28 S" Tire
   100%  4x4x3 Treaded Hollow Space Wheel
   100%  5x5 Technic Hub w/ "20x30" Tire
   100%  5x5 Technic Hub w/ "49.6x28 VR" Tire
   100%  5x5 Technic Hub w/ "68.8x40 Q" Tire
    90%  Extra Tiny Cart-Wheel/Dumb-Bell
    80%  "30.4x14 VR" Tire, no hubs
    80%  Large Tiny-Peg Hub
    80%  Large Tire for 2x2 Hub
    80%  Large Treaded Tiny-Peg Tire
    80%  Small Smooth Tires from 6444, no hubs
    80%  Small Tiny-Peg Hub
    80%  Small Tire for 2x2 Hub
    80%  Small Treaded Tiny-Peg Tire
    80%  2x2 Studded Hub w/ Metal Peg
    80%  2x2 Studded Hub w/ Peg Hole
    80%  2x2 Technic Cross-Axle Hub
    80%  3x3 Rubber Tire for Technic Pulley
    80%  3x6x2.6 Traincar Wheelset
    80%  4x4x1.3 Grooved Hub w/ 7 Peg Holes
    80%  4x4x1.6 Grooved Hub w/ 7 Peg Holes
    80%  4x4x2 Cylinder Hub w/ 6 Peg Holes
    72%  3x3 Technic Wheel Hub/Tri-Pulley
    64%  2x2 Plate w/ Metal Axle & Lg Tires
    64%  2x2 Plate w/ Metal Axle & Sm Tires
    64%  2x2 Plate w/ Tiny Gray Wheels
    64%  2x4 Brick w/ Red 2x2-Stud End Hubs
    64%  3x3x2 10+10-Tooth Tank-Tread Hub
    64%  4x7 Car Chassis w/ Tires & Hubs
    60%  1x2 PRIMO Car Brick
    60%  2x6 DUPLO Car Brick w/ Hitches
    50%  2x2 1-Wheel Landing Gear Axle
    50%  2x2 2-Wheel Landing Gear Axle (Front)
    50%  2x2 2-Wheel Landing Gear Axle (Side)
    50%  2x2 Landing Gear Axle in Tri-Set
    50%  2x2 Round Plate w/ Bottom Pulley
    50%  2x2 Round Plate w/ Cart-Wheels
    20%  DUPLO Tricycle w/ Hitch
    20%  3x3 Thin-Disc w/ Center Axle-Hole
    10%  2x4 Wheel-Well Piece, 2x2-Stud Top
    10%  2x4 Wheel-Well Piece, 2x4-Stud Top
    10%  3x4 Sloped Wheel-Well Brick
    10%  3x4 Sloped Wheel-Well Headlight Brick
    10%  3x4 Sloped Wheel-Well Headlight Brick w/ Fire Logo
    10%  3x4 Sloped Wheel-Well Headlight Brick w/ Police Badge Logo
     8%  3x3 Technic Pulley
     8%  4x5x.6 Wheel-Well Piece w/ 2x2 Hole
     5%  34-Tooth Rubber Tank Tread