🧱 Completeness checklist

Black

12 types · 60 pieces

25×Technic Pin with Friction Ridges Lengthwise and Center Slots27806×Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]320545×Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole604834×Technic Beam 1 x 5 Thick323164×Technic Beam 1 x 7 Bent (4 - 4) Thick323484×Tyre 43.2 x 26 Balloon Small614814×Wheel 30.4 x 20 without Pinholes, with Reinforced Rim561452×Technic Axle 1237082×Technic Beam 1 x 13 Thick412392×Technic Pin Connector Round [Slotted]624621×Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle186511×Technic Beam 1 x 9 Thick40490

Light Bluish Gray

9 types · 27 pieces

8×Technic Bush37134×Technic Axle and Pin Connector Perpendicular65364×Technic Beam 2 x 4 L-Shape Thick321402×Technic Axle 345192×Technic Axle 7442942×Technic Axle and Pin Connector Angled #1320132×Technic Beam 1 x 15 Thick322782×Technic Pin 1/242741×Technic Beam 1 x 11 Thick32525

Blue

2 types · 16 pieces

14×Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots65582×Technic Axle Pin with Friction Ridges Lengthwise43093

Dark Bluish Gray

7 types · 16 pieces

4×Technic Beam 1 x 3 Thick325234×Technic Panel Curved 7 x 3 with 2 Pin Holes through Panel Surface241193×Technic Beam 1 x 7 Thick325242×Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise151001×Pullback Motor 6 x 3 x 5127991×Technic Panel Fairing # 3 Small Smooth Long, Side A646831×Technic Panel Fairing # 4 Small Smooth Long, Side B64391

Yellow

1 types · 5 pieces

5×Technic Axle 532073

Trans-Light Blue

1 types · 2 pieces

2×Plate Round 1 x 1 with Solid Stud6141

Red

1 types · 1 pieces

1×Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole32184

[No Color/Any Color]

1 types · 1 pieces

1×Sticker Sheet for Set 42090-144838

Tick a part when you've found them all. Your ticks are saved on this device. Counts are the official Rebrickable inventory for this set — spares included where the set ships them.