BlockTalk Find Your Set

Free tool

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.

Speed Slammer Bike

Checking

8646 Speed Slammer Bike

126 pieces in 50 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.

Show

Piece checklist

Technic Beams 40 pieces

  • Technic Beam 1 x 11 Thick Black Part 32525 Element 6029578 or 4534909 ×2
  • Technic Beam 1 x 15 Thick Black Part 32278 Element 4542573 or 4128603 ×2
  • Technic Beam 1 x 2 Thick Black Part 43857 Element 4385726 or 4177444 ×2
  • Technic Beam 1 x 3 Thick Black Part 32523 Element 4142822 or 3252326 ×2
  • Technic Beam 1 x 3 Thin Black Part 6632 Element 6331723 or 4107828 ×2
  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×2
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Black Part 32271 Element 6276835 or 4140327 ×3
  • Technic Beam 1 x 9 Thick Black Part 40490 Element 4645732 or 4542788 ×1
  • Technic Beam 2 x 4 L-Shape Thick Black Part 32140 Element 6271825 or 4120017 ×2
  • Technic Beam Triangle Thin [Type I] Black Part 2905 Element 4142543 or 290526 ×2
  • Technic Beam 1 x 2 Thin Blue Part 41677 Element 6360123 or 4186834 ×2
  • Technic Beam 1 x 3 Thick Blue Part 32523 Element 4509376 or 4144284 ×1
  • Technic Beam 1 x 5 Thin Blue Part 32017 Element 4254626 or 4125191 ×4
  • Technic Beam 1 x 9 Bent (6 - 4) Thick Blue Part 6629 Element 6279882 or 4182884 ×1
  • Technic Beam 3 x 5 L-Shape Thick Blue Part 32526 Element 4158923 ×1
  • Technic Beam Triangle Thin [Type I] Blue Part 2905 Element 4254627 or 4142541 ×4
  • Technic Beam 1 x 2 Thick Light Bluish Gray Part 43857 Element 4211862 ×1
  • Technic Beam 1 x 2 Thin Light Bluish Gray Part 41677 Element 6348143 or 4211741 ×2
  • Technic Beam 3 x 3 L-Shape Thin Light Bluish Gray Part 32056 Element 6271815 or 4211574 ×2
  • Technic Beam 3 x 5 L-Shape with Quarter Ellipse Thin Light Bluish Gray Part 32250 Element 4234247 ×2

Technic Pins 24 pieces

  • Technic Pin Double with Axle Hole Black Part 32138 Element 4130597 or 4119589 ×1
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×9
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×4
  • Technic Pin with Friction Ridges Lengthwise and Towball Black Part 6628 Element 4184169 or 662826 ×2
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×1
  • Technic Pin Long without Friction Ridges - Single Slot Light Bluish Gray Part 32556a Element 4211709 ×7

Technic Axles 19 pieces

  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×3
  • Technic Axle 4 Black Part 3705 Element 370526 ×4
  • Technic Axle 6 Black Part 3706 Element 370626 ×3
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×4
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×4
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×1

Technic Bushes 19 pieces

  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×11
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×8

Technic Connectors 6 pieces

  • Technic Axle and Pin Connector Perpendicular Black Part 6536 Element 6261371 or 4173668 ×4
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Black Part 32184 Element 6276951 or 4121667 ×1
  • Technic Block 3 x 5 x 1 2/3 Blue Part 32310 Element 4185663 ×1

Technic Special 6 pieces

  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Blue Part 41669 Element 4185662 ×2
  • Technic Disc 3 x 3 Glow In Dark Trans Part 2723 Element 4263240 or 4260440 ×2
  • Technic Tooth 1 x 3 with Axle Hole [Rounded Underside] Glow In Dark Trans Part 41669 Element 4528345 or 4260439 ×2

Technic Panels 4 pieces

  • Technic Panel Fairing #22 Large Short, Small Hole, Side A Blue Part 44352 Element 4276980 or 4254624 ×1
  • Technic Panel Fairing #23 Large Short, Small Hole, Side B Blue Part 44353 Element 4277114 or 4254625 ×1
  • Technic Panel Fairing #24 Small Short, Small Hole, Side B Blue Part 47712 Element 4256747 ×1
  • Technic Panel Fairing #25 Small Short, Small Hole, Side A Blue Part 47713 Element 4256753 ×1

Wheels and Tyres 3 pieces

  • Tyre 43.2 x 22 ZR Black Part 44309 Element 4184286 ×1
  • Wheel 30.4 x 20 with 3 Pinholes Light Bluish Gray Part 44292 Element 4211809 ×1
  • Wheel 36.8 x 14 ZR with Axle Hole, 3 Pin Holes, and Black Rubber Tyre Glued On Light Gray Part 44293c01 Element 4270685 ×1

Energy Effects 2 pieces

  • Large Figure Weapon Sword, Toa Flame 2 x 12 with Two Holes Red Part 32558 Element 4520004 or 4260041 ×2

String, Bands and Reels 2 pieces

  • Technic Rubber Belt Medium [26mm ID] [Round Cross Section] Blue Part 85545 Element 6049730 or 4544147 ×2

Stickers 1 piece

  • Sticker Sheet for Set 8646-1 [No Color/Any Color] Part 52176 Element 4254518 ×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.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy