LEGO Monorail Transport System
Set #6990 · 1988 · 731 pieces · Substantial build
Set Details
- Set Number
- 6990
- Name
- Monorail Transport System
- Theme
- Space
- Year
- 1988
- Pieces
- 731
- Complexity
- Substantial
- Build Time
- 2-4 hours
- Ages
- 10+
- Type
- Play-focused
About LEGO Monorail Transport System
LEGO Monorail Transport System (set #6990) is a large, detailed build with 731 pieces from the Space theme, released in 1988. The Space line features spacecraft, moon bases, and interstellar exploration. At 731 pieces, this is a substantial-level build with an estimated build time of 2-4 hours, suitable for ages 10+. This set dates from the 1980s, widely considered LEGO's golden age of original themes.
Finding Instructions
Instructions for older sets like #6990 (1988) may not always be available on LEGO.com. Try searching the set number directly, or upload a photo of the bricks to LegoFinder — the AI can identify vintage sets from their parts.
Monorail Transport System FAQ
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