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LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Kai's Motorcycle Speed Race

Checking

71838 Kai's Motorcycle Speed Race

67 pieces in 34 part and color combinations, plus 2 minifigures.

The official piece count includes the 12 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

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Piece checklist

Black 24 pieces

  • Bracket 1 x 2 - 1 x 2 Black Part 99781 Element 6016172 ×4
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Black Part 11477 Element 6047276 ×1
  • Brick Curved Inverted 2 x 2 with 1 x 2 Cutouts Black Part 1750 Element 6458098 ×1
  • Handlebars Black Part 30031 Element 3003126 ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 ×4
  • Plate Special 1 x 1 with Handle on 2 Ends Black Part 78257 Element 6398391 ×1
  • Plate Special 1 x 2, Top Clip [Open O] Black Part 44861 Element 6347310 ×3
  • Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] Black Part 99563 Element 6156991 ×2
  • Tyre 24 x 14 Shallow Tread (Tread Small Hub), Band Around Center of Tread Black Part 89201 Element 6132299 or 4639695 ×2
  • Tyre 30.4 x 14 Offset Tread [Centre Band] Black Part 92402 Element 4619323 ×2
  • Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes Black Part 55981 Element 6359824 or 6109682 ×2

Red 10 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Red Part 11477 Element 6029946 ×1
  • Brick Wedged, Curved 1 x 2 x 2/3 No Studs, Wing End Red Part 47458 Element 6375708 or 4220516 ×2
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Red Part 15573 Element 6092565 ×1
  • Plate Special 1 x 2, Top Clip [Open O] Red Part 44861 Element 6347308 ×3
  • Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes Red Part 55981 Element 6256881 or 6109680 ×2

Light Bluish Gray 8 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Light Bluish Gray Part 99780 Element 6004990 ×4
  • Technic Pin Long 3l with Stop and Hole Light Bluish Gray Part 77765 Element 6338962 ×4

Pearl Gold 8 pieces

  • Plate Round 1 x 1 with Solid Stud Pearl Gold Part 6141 Element 4523159 1 spare in the box ×2
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Pearl Gold Part 3839b Element 6337403 ×1
  • Weapon Sai Pearl Gold Part 98139 Element 6270135 or 4646866 1 spare in the box ×2
  • Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard] Pearl Gold Part 21459 Element 6116596 ×2
  • Weapon Sword, Broad with Trans-Red Blade Pattern Pearl Gold Part 7182pat0001 Element 6543920 ×1

Light Aqua 7 pieces

  • Plant / Animal Body Part, Tree / Branch / Tail / Appendage / Tentacle with Pin Light Aqua Part 69858 Element 6544733 1 spare in the box ×3
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Light Aqua Part 15573 Element 6097303 ×1
  • Plate Special 1 x 2 with Three Teeth [Tri-Tooth] Light Aqua Part 15208 Element 6543213 ×1
  • Plate Special Round 1 x 2 Half Circle with Stud (Jumper) Light Aqua Part 1745 Element 6510063 or 6445946 ×2

Dark Bluish Gray 5 pieces

  • Weapon Hilt Symmetric Dark Bluish Gray Part 66909 Element 6296951 ×1
  • Wheel Fork with 2 x 2 Plate Dark Bluish Gray Part 77598 Element 6338470 ×4

Bright Light Orange 3 pieces

  • Bracket 1 x 1 - 1 x 1 Inverted Bright Light Orange Part 36840 Element 6249235 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Bright Light Orange Part 15573 Element 6122504 ×2

Dark Red 1 piece

  • Plate 2 x 3 Dark Red Part 3021 Element 6264030 or 4541510 ×1

Trans-Light Blue 1 piece

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Light Blue Part 54200 Element 6245277 or 6073445 1 spare in the box ×1

Minifigures 2 figures

  • Kai, Red Shoulder Armor and Mask, Hair Minifigure, checked as a whole figure ×1
  • Spectral Dragonian Warrior, Legs, Short Horns Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

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