Mars exploration awaits!
Blast off with the MT-31 Trike!

Join the Mars Mission with this awesome 95-piece set from 2007! Includes 2 minifigs for intergalactic adventures.

🏛 Mars Mission
Set #7694

MT-31 Trike

The MT-31 Trike is a fun little set from the Mars Mission theme.

🏆 Best For: Younger LEGO enthusiasts and fans of the Mars Mission theme looking for a quick and fun build. ⏱ 1.5 hr build 🧩 95 pcs
★★★☆☆ 3.8

Fans appreciate this set's unique trike design and the inclusion of both a Martian and astronaut minifigure. However, some find the build relatively simple and the overall play value limited compared to larger sets in the Mars Mission theme.

📝 Our Take

The MT-31 Trike is a fun little set from the Mars Mission theme. It perfectly captures the adventurous spirit of space exploration with its rugged design and bright color scheme, making it a great addition to any LEGO collection.

This set is perfect for younger builders and fans of the Mars Mission theme. With a relatively low piece count, it offers a quick and engaging building experience that can be easily completed in a single sitting, and it's great for imaginative play.

Skip this if you're looking for a more complex and challenging build. This set is geared towards a younger audience, so if you prefer larger, more intricate models, consider exploring other sets within the LEGO Space theme.

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How does this set compare to other vehicles in the Mars Mission theme? What are some good ways to display this set with other LEGO Space sets? Is this set a good introduction to LEGO Technic elements for younger builders? How has the value of this set changed since it was retired?

🧱 Building Experience

🧩
95
Pieces
1.5h
Build Time
📊
Beginner
Difficulty
Build Highlights:
  • Simple but effective Technic integration for the steering mechanism.
  • Use of angled connectors to create a unique trike design.
  • Incorporation of translucent dark blue cones for a futuristic look.
  • Durable construction suitable for play.

📈 Investment Analysis

→ Price stable
C+
Investment Grade
⏳ Active
The MT-31 Trike, while not the most sought-after set, holds some investment potential due to its retired status and the popularity of the Mars Mission theme among LEGO Space collectors. Its relatively low piece count might limit significant appreciation, but the inclusion of minifigures and the set's overall uniqueness could make it a worthwhile addition to a collection. However, potential investors should be aware of the limited appeal compared to larger or more iconic sets from the same era, and consider the risk that broader interest in this specific subtheme may wane.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

Compare Similar Sets

Compared to other Mars Mission sets, the MT-31 Trike is a smaller, more accessible build. While sets like the larger Martian base offer more play features and a higher piece count, the Trike is a good entry point into the theme, especially for younger builders. It's also a more affordable option for collectors looking to acquire a piece of the Mars Mission lineup without a significant investment.

2 Minifigures Included

The set includes a Martian minifigure and a Mars Astronaut with a Balaclava, adding to the playability and collectibility. The Mars Astronaut is unique to this subtheme.

📦 Full Parts Inventory - 48 unique parts • 85 total pieces

Equipment Goblet / Glass Equipment Goblet ...
Part #: 2343 Black
Tile Special 1 x 2 Grille with Bottom Groove Tile Special 1 x ...
Part #: 2412b Orange
Wedge Plate 3 x 6 Cut Corners Wedge Plate 3 x 6...
Part #: 2419 White
Headwear Accessory Visor For Standard Helmet Headwear Accessor...
Part #: 2447 Metallic Gold
Brick 2 x 6 Brick 2 x 6
Part #: 2456 White
Wheel Hard Plastic Large (54mm D. x 30mm) Wheel Hard Plasti...
Part #: 2515 Orange
Technic Disc 3 x 3 Technic Disc 3 x 3
Part #: 2723 Black
Technic Pin with Friction Ridges Lengthwise and Center Slots Technic Pin with ...
Part #: 2780 Black
Lever Small Base with Black Lever Lever Small Base ...
Part #: 298c02 Blue
Brick 2 x 4 Brick 2 x 4
Part #: 3001 Light Bluish Gray
Rock 1 x 1 Jewel / Gem 24 Facet Rock 1 x 1 Jewel ...
Part #: 30153 Trans-Neon Green
Plate 2 x 3 Plate 2 x 3
Part #: 3021 Light Bluish Gray
Plate 1 x 2 Plate 1 x 2
Part #: 3023 Orange
Plate 4 x 6 Plate 4 x 6
Part #: 3032 Black
Tile 1 x 2 with Groove Tile 1 x 2 with G...
Part #: 3069b White
Technic Axle and Pin Connector Angled #6 - 90° Technic Axle and ...
Part #: 32014 Black
Technic Axle and Pin Connector Angled #5 - 112.5° Technic Axle and ...
Part #: 32015 White
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Technic Bush 1/2 ...
Part #: 32123b Light Bluish Gray
Technic Pin without Friction Ridges Lengthwise Technic Pin witho...
Part #: 3673 Light Bluish Gray
Technic Brick 1 x 4 [3 Pin Holes] Technic Brick 1 x...
Part #: 3701 White
Technic Brick 1 x 8 [7 Pin Holes] Technic Brick 1 x...
Part #: 3702 Black
Technic Axle 4 Technic Axle 4
Part #: 3705 Black
Technic Axle 6 Technic Axle 6
Part #: 3706 Black
Technic Axle 8 Technic Axle 8
Part #: 3707 Black
Technic Axle 12 Technic Axle 12
Part #: 3708 Black
Technic Bush Technic Bush
Part #: 3713 Light Bluish Gray
Technic Steering Pulley Large Technic Steering ...
Part #: 3736 White
Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Plate Special 1 x...
Part #: 3794a Dark Bluish Gray
Plate 2 x 6 Plate 2 x 6
Part #: 3795 White
Brick Special 1 x 1 with Headlight Brick Special 1 x...
Part #: 4070 Black
Hinge Brick 2 x 2 Locking with 2 Fingers Vertical and Axle Hole, 9 Teeth Hinge Brick 2 x 2...
Part #: 40902 Black
Wedge Curved 6 x 2 Right, Inner Ridges Wedge Curved 6 x ...
Part #: 41747 White
Wedge Curved 6 x 2 Left, Inner Ridges Wedge Curved 6 x ...
Part #: 41748 White
Technic Pin 1/2 Technic Pin 1/2
Part #: 4274 Blue
Technic Axle Pin with Friction Ridges Lengthwise Technic Axle Pin ...
Part #: 43093 Blue
Hinge Plate 1 x 2 Locking with 1 Finger on Side, with Groove Hinge Plate 1 x 2...
Part #: 44567a Light Bluish Gray
Hinge Plate 1 x 4 Locking Dual 1 Finger Hinge Plate 1 x 4...
Part #: 44568 White
Technic Axle Connector Double Flexible [Rubber] Technic Axle Conn...
Part #: 45590 Black
Cone 1 x 1 [No Top Groove] Cone 1 x 1 [No To...
Part #: 4589 Trans-Dark Blue
Windscreen 6 x 6 x 3 Canopy Half Sphere with Dual 2 Fingers Windscreen 6 x 6 ...
Part #: 50747 Trans-Orange
Slope 30° 1 x 1 x 2/3 (Cheese Slope) Slope 30° 1 x 1 x...
Part #: 54200 Orange
Equipment Martian Hypersled with Pin (Mars Mission) Equipment Martian...
Part #: 58843 White
Cylinder 9 x 4 x 2 Tapered with Flat Bottom, Pin Holes Cylinder 9 x 4 x ...
Part #: 58947 Trans-Orange
Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Plate Special 1 x...
Part #: 6019 Black
Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Technic Axle 1.5 ...
Part #: 6553 Light Bluish Gray
Tile 1 x 6 with Groove Tile 1 x 6 with G...
Part #: 6636 Black
Hose, Ribbed 7mm D. 4L / 3.2cm Hose, Ribbed 7mm ...
Part #: 78c04 Black
🧱 Sticker Sheet for...
Part #: 59620 [No Color/Any Color]
The set features a variety of Technic elements, making it a good source for builders looking to expand their collection of connectors, axles, and gears. The orange color scheme is also relatively uncommon, providing useful parts for creating custom vehicles or space-themed MOCs.

💎 Notable Parts

Orange Wheel Hard Plastic Large (54mm D. x 30mm) (3x) $0.75
Trans-Dark Blue Cone 1 x 1 [No Top Groove] (4x) $0.60
White Technic Steering Pulley Large (2x) $0.50
Est. BrickLink Part Value
$1.85

💡 MOC Potential

🚗 Futuristic off-road vehicles
🤖 Small support robots for larger Mars bases
🚀 Launch platforms for smaller rockets

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Charts Inventory Statistics

48
Unique Parts
85
Total Pieces
2
Minifigures
Inventory Version: 1