How many pieces does the LEGO Classic Trial Size (4284-1) have?

The LEGO Classic Trial Size set (4284-1) contains 123 pieces. It was released in 1999 as part of the LEGO Universal Building Set theme.

How can I find missing parts for LEGO set 4284-1?

On BrickMissing you can check which parts from the LEGO Classic Trial Size (4284-1) you already own. Add your LEGO collection and we'll show exactly which of the 123 pieces you're missing and which you already have.

Can I build the LEGO Classic Trial Size with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 123 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Classic Trial Size from?

The LEGO Classic Trial Size (4284-1) 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.

Classic Trial Size

🏷️ 4284-1•🎨 Universal Building Set•📅 1999•🧱 123 parts•Easy

Classic Trial Size (4284-1) is a LEGO Universal Building Set from 1999. This page uses the available set and theme data until a fuller product description is available.

Parts Inventory

🧱 123 parts

Part	Color	Qty
Tile Special 1 x 2 Grille with Bottom Groove 2412b	Black	2×
Tile Special 2 x 2 with Top Pin 2460	Yellow	1×
Propeller 4 Blade 5 Diameter with Rounded Ends, Open Hub 2479	Black	1×
Brick Special 2 x 2 with 2 Pins and Axle Hole 30000	Dark Gray	2×
Brick 2 x 4 3001	White	1×
Brick 2 x 4 3001	Black	1×
Brick 2 x 2 3003	Yellow	2×
Brick 2 x 2 3003	Black	2×
Brick 2 x 2 3003	Red	2×
Brick 2 x 2 3003	White	2×

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Brick 2 x 4	3001	Black	1×
Brick 2 x 2	3003	Yellow	2×
Brick 2 x 2	3003	Black	2×
Brick 2 x 2	3003	Red	2×
Brick 2 x 2	3003	White	2×
Brick 1 x 2	3004	Black	4×
Brick 1 x 2	3004	Red	2×
Brick 1 x 2	3004	Yellow	4×
Brick 1 x 2	3004	White	4×
Brick 1 x 1	3005	Red	4×
Brick 1 x 1	3005	Black	6×
Brick 1 x 1	3005	Yellow	6×
Brick 1 x 1	3005	White	6×
Brick 1 x 1 with Simple Eye Black and White Print	3005pr9996	Red	2×
Brick 1 x 4	3010	Yellow	2×
Brick 1 x 4	3010	Black	4×
Brick 1 x 4	3010	Red	2×
Brick 1 x 4	3010	White	4×
Plate 2 x 4	3020	Red	2×
Plate 4 x 10	3030	Red	1×
Plate 2 x 8	3034	Red	2×
Slope 45? 2 x 2	3039	Trans-Clear	1×
Slope 45? 2 x 2	3039	Black	2×
Brick Round 1 x 1 Open Stud	3062b	White	8×
Slope 33° 3 x 4	3297	Black	2×
Slope 33° 3 x 2	3298	Black	4×
Slope 33° 3 x 2 with Red on Yellow Triangles Print	3298pr0005	Black	2×
Tyre Offset Tread 24 x 8	3483	Black	4×
Brick 1 x 3	3622	Black	2×
Fence Lattice 1 x 4 x 1	3633	Yellow	2×
Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]	3660	Black	2×
Plate 1 x 4	3710	Red	2×
Plant, Flower Stem	3741	Light Bluish Gray	1×
Plant, Flower - Small	3742	Red	3×
Steering Stand 1 x 2 with Black Steering Wheel	3829c01	Yellow	1×
Baseplate 8 x 16	3865	Light Bluish Gray	1×
Antenna 1 x 4 with Rounded Top	3957a	Yellow	1×
Brick Special 1 x 1 with Headlight	4070	Black	2×
Slope 33° 3 x 1	4286	Black	2×
Slope Inverted 34° 3 x 1 without Internal Stopper	4287a	Dark Blue	2×
Wheel Freestyle with 2 x 2 Studs and Pin Hole	6248	Red	4×
Hips and Light Gray Legs	970c17	Light Gray	1×
Hat / Cap Long Peak [Plain]	4485	White	1×
Torso Vest, Striped Undershirt, Zipper, Pockets Print, Blue Arms, Yellow Hands	973c28h01pr0028	White	1×
Minifig Head, Standard Grin and Eyebrows Print [Blocked Open Stud]	3626bpr0007	Yellow	1×

Build DNA

Parts inventory insights for Classic Trial Size

123 pieces puts this build -73% against the average Universal Building Set set and -36% against the average 1999 release.

LEGOUNIVERSAL BUILDING SET

Vs average Universal Building Set set

-73%-332 parts

This set123

Average set455

Average Universal Building Set set: 455 pieces across 55 other sets.

Vs average 1999 set

-36%-69 parts

This set123

Average set192

Average 1999 set: 192 pieces across 144 other sets.

Color profile

9different colors

Dominant color

Black

Black42x

34%

White27x

22%

Red26x

21%

Yellow20x

16%

Unique parts

3.4 pieces per unique type

Repeat factor

Average pieces per unique type.

Most used part

Brick 1 x 1

22x

Results are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.

This site is not affiliated with or endorsed by the LEGO Group.

Build Insights🧩36unique parts🎨9different colors📊13.7avg. parts per color🏆22×Brick 1 x 1

🎨 All Universal Building Set sets 📅 All sets from 1999

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