Question 1

How many pieces does the LEGO Challenger Set 100 (4221-1) have?

Accepted Answer

The LEGO Challenger Set 100 set (4221-1) contains 66 pieces. It was released in 1998 as part of the LEGO Universal Building Set theme.

Question 2

How can I find missing parts for LEGO set 4221-1?

Accepted Answer

On BrickMissing you can check which parts from the LEGO Challenger Set 100 (4221-1) you already own. Add your LEGO collection and we'll show exactly which of the 66 pieces you're missing and which you already have.

Question 3

Can I build the LEGO Challenger Set 100 with parts I already have?

Accepted Answer

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 66 parts to show your buildability percentage and which specific pieces you still need.

Question 4

What theme is the LEGO Challenger Set 100 from?

Accepted Answer

The LEGO Challenger Set 100 (4221-1) belongs to the LEGO Universal Building Set theme. You can browse all Universal Building Set sets on BrickMissing to find more sets from this theme.

Part	Color	Qty	LEGO price each
Brick Special 1 x 2 with Pin 2458	Black	1×	Check price → View
Brick 2 x 4 3001	Black	1×	€0,22 View at LEGO → View
Brick 2 x 2 3003	Black	2×	€0,13 View at LEGO → View
Brick 2 x 2 3003	Red	2×	€0,13 View at LEGO → View
Brick 1 x 2 3004	Red	2×	€0,11 View at LEGO → View
Brick 1 x 2 3004	Black	4×	€0,11 View at LEGO → View
Brick 1 x 1 3005	Yellow	2×	€0,07 View at LEGO → View
Brick 1 x 1 3005	Red	2×	€0,07 View at LEGO → View
Brick 1 x 1 with Simple Eye Black and White Print 3005pr9996	Yellow	2×	Check price → View
Brick 1 x 6 3009	Black	2×	€0,25 View at LEGO → View
Brick 1 x 4 3010	Yellow	2×	€0,16 View at LEGO → View
Brick 1 x 4 3010	Black	2×	€0,16 View at LEGO → View

Challenger Set 100

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Parts Inventory

Can you fix Challenger Set 100 if a piece goes missing?

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Parts inventory insights for Challenger Set 100