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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.

RoboRider Database Set

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ROBORIDER RoboRider Database Set

128 pieces in 128 part and color combinations.

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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

10 more look-alike pairs
  • Technic Disc 5 x 5 Notched, Fuel Print Orange ×1 Trans-Neon Orange ×1 Trans-Neon Orange is see-through: hold the piece up to a light.
  • Technic Disc 5 x 5 Notched, Grab with Robot Print Orange ×1 Trans-Neon Orange ×1 Trans-Neon Orange is see-through: hold the piece up to a light.
  • Technic Disc 5 x 5 Notched, Laser with Robot Print Orange ×1 Trans-Neon Orange ×1 Trans-Neon Orange is see-through: hold the piece up to a light.
  • Technic Disc 5 x 5 Notched, Ninja Print Orange ×1 Trans-Neon Orange ×1 Trans-Neon Orange is see-through: hold the piece up to a light.
  • Technic Disc 5 x 5 Notched, Rope Print Orange ×1 Trans-Neon Orange ×1 Trans-Neon Orange is see-through: hold the piece up to a light.
  • Technic Disc 5 x 5 Notched, Scout Print Orange ×1 Trans-Neon Orange ×1 Trans-Neon Orange is see-through: hold the piece up to a light.
  • Technic Disc 5 x 5 Notched, Skeleton Print Orange ×1 Trans-Neon Orange ×1 Trans-Neon Orange is see-through: hold the piece up to a light.
  • Technic Disc 5 x 5 Notched, Stunner Print Orange ×1 Trans-Neon Orange ×1 Trans-Neon Orange is see-through: hold the piece up to a light.
  • Technic Disc 5 x 5 Notched, Toxic Print Orange ×1 Trans-Neon Orange ×1 Trans-Neon Orange is see-through: hold the piece up to a light.
  • Technic Disc 5 x 5 Notched, Twin Saw Print Orange ×1 Trans-Neon Orange ×1 Trans-Neon Orange is see-through: hold the piece up to a light.
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Piece checklist

Technic Special 128 pieces

  • Technic Disc 5 x 5 Notched, Axer Print Black Part 32361pr0001 ×1
  • Technic Disc 5 x 5 Notched, Blazooka Black Part 32303pr0001 ×1
  • Technic Disc 5 x 5 Notched, Chain-Saw Print Black Part 32362pr0001 ×1
  • Technic Disc 5 x 5 Notched, Driller Print Black Part 32355pr0001 ×1
  • Technic Disc 5 x 5 Notched, Dynamite Print Black Part 32356pr0001 ×1
  • Technic Disc 5 x 5 Notched, Flame with Robot Print Black Part 32358pr0001 ×1
  • Technic Disc 5 x 5 Notched, Fuel Print Black Part 32352pr0001 ×1
  • Technic Disc 5 x 5 Notched, Grab with Robot Print Black Part 32363pr0001 ×1
  • Technic Disc 5 x 5 Notched, Laser with Robot Print Black Part 32360pr0001 ×1
  • Technic Disc 5 x 5 Notched, Ninja Print Black Part 32349pr0001 ×1
  • Technic Disc 5 x 5 Notched, Rope Print Black Part 32354pr0001 ×1
  • Technic Disc 5 x 5 Notched, Scout Print Black Part 32351pr0001 ×1
  • Technic Disc 5 x 5 Notched, Skeleton Print Black Part 32353pr0001 ×1
  • Technic Disc 5 x 5 Notched, Stunner Print Black Part 32359pr0001 ×1
  • Technic Disc 5 x 5 Notched, Toxic Print Black Part 32357pr0001 ×1
  • Technic Disc 5 x 5 Notched, Twin Saw Print Black Part 32350pr0001 ×1
  • Technic Disc 5 x 5 Notched, Axer Print Dark Gray Part 32361pr0001 ×1
  • Technic Disc 5 x 5 Notched, Blazooka Dark Gray Part 32303pr0001 ×1
  • Technic Disc 5 x 5 Notched, Chain-Saw Print Dark Gray Part 32362pr0001 ×1
  • Technic Disc 5 x 5 Notched, Driller Print Dark Gray Part 32355pr0001 ×1
  • Technic Disc 5 x 5 Notched, Dynamite Print Dark Gray Part 32356pr0001 ×1
  • Technic Disc 5 x 5 Notched, Flame with Robot Print Dark Gray Part 32358pr0001 ×1
  • Technic Disc 5 x 5 Notched, Fuel Print Dark Gray Part 32352pr0001 ×1
  • Technic Disc 5 x 5 Notched, Grab with Robot Print Dark Gray Part 32363pr0001 ×1
  • Technic Disc 5 x 5 Notched, Laser with Robot Print Dark Gray Part 32360pr0001 ×1
  • Technic Disc 5 x 5 Notched, Ninja Print Dark Gray Part 32349pr0001 ×1
  • Technic Disc 5 x 5 Notched, Rope Print Dark Gray Part 32354pr0001 ×1
  • Technic Disc 5 x 5 Notched, Scout Print Dark Gray Part 32351pr0001 ×1
  • Technic Disc 5 x 5 Notched, Skeleton Print Dark Gray Part 32353pr0001 ×1
  • Technic Disc 5 x 5 Notched, Stunner Print Dark Gray Part 32359pr0001 ×1
  • Technic Disc 5 x 5 Notched, Toxic Print Dark Gray Part 32357pr0001 ×1
  • Technic Disc 5 x 5 Notched, Twin Saw Print Dark Gray Part 32350pr0001 ×1
  • Technic Disc 5 x 5 Notched, Axer Print Dark Turquoise Part 32361pr0001 ×1
  • Technic Disc 5 x 5 Notched, Blazooka Dark Turquoise Part 32303pr0001 ×1
  • Technic Disc 5 x 5 Notched, Chain-Saw Print Dark Turquoise Part 32362pr0001 ×1
  • Technic Disc 5 x 5 Notched, Driller Print Dark Turquoise Part 32355pr0001 ×1
  • Technic Disc 5 x 5 Notched, Dynamite Print Dark Turquoise Part 32356pr0001 ×1
  • Technic Disc 5 x 5 Notched, Flame with Robot Print Dark Turquoise Part 32358pr0001 ×1
  • Technic Disc 5 x 5 Notched, Fuel Print Dark Turquoise Part 32352pr0001 ×1
  • Technic Disc 5 x 5 Notched, Grab with Robot Print Dark Turquoise Part 32363pr0001 ×1
  • Technic Disc 5 x 5 Notched, Laser with Robot Print Dark Turquoise Part 32360pr0001 ×1
  • Technic Disc 5 x 5 Notched, Ninja Print Dark Turquoise Part 32349pr0001 ×1
  • Technic Disc 5 x 5 Notched, Rope Print Dark Turquoise Part 32354pr0001 ×1
  • Technic Disc 5 x 5 Notched, Scout Print Dark Turquoise Part 32351pr0001 ×1
  • Technic Disc 5 x 5 Notched, Skeleton Print Dark Turquoise Part 32353pr0001 ×1
  • Technic Disc 5 x 5 Notched, Stunner Print Dark Turquoise Part 32359pr0001 ×1
  • Technic Disc 5 x 5 Notched, Toxic Print Dark Turquoise Part 32357pr0001 ×1
  • Technic Disc 5 x 5 Notched, Twin Saw Print Dark Turquoise Part 32350pr0001 ×1
  • Technic Disc 5 x 5 Notched, Axer Print Glow In Dark Opaque Part 32361pr0001 ×1
  • Technic Disc 5 x 5 Notched, Blazooka Glow In Dark Opaque Part 32303pr0001 ×1
  • Technic Disc 5 x 5 Notched, Chain-Saw Print Glow In Dark Opaque Part 32362pr0001 ×1
  • Technic Disc 5 x 5 Notched, Driller Print Glow In Dark Opaque Part 32355pr0001 ×1
  • Technic Disc 5 x 5 Notched, Dynamite Print Glow In Dark Opaque Part 32356pr0001 ×1
  • Technic Disc 5 x 5 Notched, Flame with Robot Print Glow In Dark Opaque Part 32358pr0001 ×1
  • Technic Disc 5 x 5 Notched, Fuel Print Glow In Dark Opaque Part 32352pr0001 ×1
  • Technic Disc 5 x 5 Notched, Grab with Robot Print Glow In Dark Opaque Part 32363pr0001 ×1
  • Technic Disc 5 x 5 Notched, Laser with Robot Print Glow In Dark Opaque Part 32360pr0001 ×1
  • Technic Disc 5 x 5 Notched, Ninja Print Glow In Dark Opaque Part 32349pr0001 ×1
  • Technic Disc 5 x 5 Notched, Rope Print Glow In Dark Opaque Part 32354pr0001 ×1
  • Technic Disc 5 x 5 Notched, Scout Print Glow In Dark Opaque Part 32351pr0001 ×1
  • Technic Disc 5 x 5 Notched, Skeleton Print Glow In Dark Opaque Part 32353pr0001 ×1
  • Technic Disc 5 x 5 Notched, Stunner Print Glow In Dark Opaque Part 32359pr0001 ×1
  • Technic Disc 5 x 5 Notched, Toxic Print Glow In Dark Opaque Part 32357pr0001 ×1
  • Technic Disc 5 x 5 Notched, Twin Saw Print Glow In Dark Opaque Part 32350pr0001 ×1
  • Technic Disc 5 x 5 Notched, Axer Print Orange Part 32361pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Blazooka Orange Part 32303pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Chain-Saw Print Orange Part 32362pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Driller Print Orange Part 32355pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Dynamite Print Orange Part 32356pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Flame with Robot Print Orange Part 32358pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Fuel Print Orange Part 32352pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Grab with Robot Print Orange Part 32363pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Laser with Robot Print Orange Part 32360pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Ninja Print Orange Part 32349pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Rope Print Orange Part 32354pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Scout Print Orange Part 32351pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Skeleton Print Orange Part 32353pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Stunner Print Orange Part 32359pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Toxic Print Orange Part 32357pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Twin Saw Print Orange Part 32350pr0001 Also in Trans-Neon Orange ×1
  • Technic Disc 5 x 5 Notched, Axer Print Trans-Light Blue Part 32361pr0001 ×1
  • Technic Disc 5 x 5 Notched, Blazooka Trans-Light Blue Part 32303pr0001 ×1
  • Technic Disc 5 x 5 Notched, Chain-Saw Print Trans-Light Blue Part 32362pr0001 ×1
  • Technic Disc 5 x 5 Notched, Driller Print Trans-Light Blue Part 32355pr0001 ×1
  • Technic Disc 5 x 5 Notched, Dynamite Print Trans-Light Blue Part 32356pr0001 ×1
  • Technic Disc 5 x 5 Notched, Flame with Robot Print Trans-Light Blue Part 32358pr0001 ×1
  • Technic Disc 5 x 5 Notched, Fuel Print Trans-Light Blue Part 32352pr0001 ×1
  • Technic Disc 5 x 5 Notched, Grab with Robot Print Trans-Light Blue Part 32363pr0001 ×1
  • Technic Disc 5 x 5 Notched, Laser with Robot Print Trans-Light Blue Part 32360pr0001 ×1
  • Technic Disc 5 x 5 Notched, Ninja Print Trans-Light Blue Part 32349pr0001 ×1
  • Technic Disc 5 x 5 Notched, Rope Print Trans-Light Blue Part 32354pr0001 ×1
  • Technic Disc 5 x 5 Notched, Scout Print Trans-Light Blue Part 32351pr0001 ×1
  • Technic Disc 5 x 5 Notched, Skeleton Print Trans-Light Blue Part 32353pr0001 ×1
  • Technic Disc 5 x 5 Notched, Stunner Print Trans-Light Blue Part 32359pr0001 ×1
  • Technic Disc 5 x 5 Notched, Toxic Print Trans-Light Blue Part 32357pr0001 ×1
  • Technic Disc 5 x 5 Notched, Twin Saw Print Trans-Light Blue Part 32350pr0001 ×1
  • Technic Disc 5 x 5 Notched, Axer Print Trans-Neon Orange Part 32361pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Blazooka Trans-Neon Orange Part 32303pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Chain-Saw Print Trans-Neon Orange Part 32362pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Driller Print Trans-Neon Orange Part 32355pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Dynamite Print Trans-Neon Orange Part 32356pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Flame with Robot Print Trans-Neon Orange Part 32358pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Fuel Print Trans-Neon Orange Part 32352pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Grab with Robot Print Trans-Neon Orange Part 32363pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Laser with Robot Print Trans-Neon Orange Part 32360pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Ninja Print Trans-Neon Orange Part 32349pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Rope Print Trans-Neon Orange Part 32354pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Scout Print Trans-Neon Orange Part 32351pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Skeleton Print Trans-Neon Orange Part 32353pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Stunner Print Trans-Neon Orange Part 32359pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Toxic Print Trans-Neon Orange Part 32357pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Twin Saw Print Trans-Neon Orange Part 32350pr0001 Also in Orange ×1
  • Technic Disc 5 x 5 Notched, Axer Print Yellow Part 32361pr0001 ×1
  • Technic Disc 5 x 5 Notched, Blazooka Yellow Part 32303pr0001 ×1
  • Technic Disc 5 x 5 Notched, Chain-Saw Print Yellow Part 32362pr0001 ×1
  • Technic Disc 5 x 5 Notched, Driller Print Yellow Part 32355pr0001 ×1
  • Technic Disc 5 x 5 Notched, Dynamite Print Yellow Part 32356pr0001 ×1
  • Technic Disc 5 x 5 Notched, Flame with Robot Print Yellow Part 32358pr0001 ×1
  • Technic Disc 5 x 5 Notched, Fuel Print Yellow Part 32352pr0001 ×1
  • Technic Disc 5 x 5 Notched, Grab with Robot Print Yellow Part 32363pr0001 ×1
  • Technic Disc 5 x 5 Notched, Laser with Robot Print Yellow Part 32360pr0001 ×1
  • Technic Disc 5 x 5 Notched, Ninja Print Yellow Part 32349pr0001 ×1
  • Technic Disc 5 x 5 Notched, Rope Print Yellow Part 32354pr0001 ×1
  • Technic Disc 5 x 5 Notched, Scout Print Yellow Part 32351pr0001 ×1
  • Technic Disc 5 x 5 Notched, Skeleton Print Yellow Part 32353pr0001 ×1
  • Technic Disc 5 x 5 Notched, Stunner Print Yellow Part 32359pr0001 ×1
  • Technic Disc 5 x 5 Notched, Toxic Print Yellow Part 32357pr0001 ×1
  • Technic Disc 5 x 5 Notched, Twin Saw Print Yellow Part 32350pr0001 ×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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