How many pieces are in the MT-31 Trike?

MT-31 Trike contains 95 pieces.

When was the MT-31 Trike released?

MT-31 Trike was released in 2007.

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🏛 Mars Mission

Set #7694

MT-31 Trike

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

Before you buy

Who it's for: Beginner build Younger LEGO enthusiasts and fans of the Mars Mission theme looking for a quick and fun build.
Build: 95 pieces · about 1.5 hours Build time is an estimate.
Availability: Retired at LEGO

★★★★☆ 4.0 community rating

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.

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📝 Our Take

AI-assisted editorial summary, grounded in our LEGO database and public community discussions. How we use AI

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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🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI

🧩

Pieces

⏱

1.5h

Estimated 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

AI-assisted investment analysis, grounded in our LEGO database and public community discussions. How we use AI

Not enough price history for a trend

C+

Investment Grade

⏳ Retired

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

📖 About This Set

The Mars Mission team can transport energy crystals and captured aliens anywhere across the Martian surface with the all-terrain MT-31 Trike vehicle with working suspension system! Includes astronaut minifigure and glow-in-the-dark alien minifigure! Trike has all terrain wheels and suspension!

⚖ Compare Similar Sets

MX-71 Recon Dropship

Mars Mission • 204 pcs

$20.00

MT-61 Crystal Reaper

Mars Mission • 380 pcs

$40.00

Gridnoid

Ice Planet 2002 • 50 pcs

$6.00

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

Martian

2 parts

B+

Mars Astronaut, Balaclava

5 parts

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.

📦 Parts Inventory

Official piece count: 95
Parts cataloged in this inventory: 47 unique parts, 88 pieces
Minifigures: 2

The official piece count includes the 7 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Equipment Goblet ...

Part #: 2343 2× Black

Tile Special 1 x ...

Part #: 2412b 2× Orange

Wedge Plate 3 x 6...

Part #: 2419 1× White

Brick 2 x 6

Part #: 2456 1× White

Wheel Hard Plasti...

Part #: 2515 3× Orange

Technic Disc 3 x 3

Part #: 2723 1× Black

Technic Pin with ...

Part #: 2780 4× Black

Lever Small Base ...

Part #: 298c02 1× Blue

Brick 2 x 4

Part #: 3001 1× Light Bluish Gray

Rock 1 x 1 Jewel ...

Part #: 30153 1× Trans-Neon Green

Plate 2 x 3

Part #: 3021 1× Light Bluish Gray

Plate 1 x 2

Part #: 3023 2× Orange

Plate 4 x 6

Part #: 3032 1× Black

Tile 1 x 2 with G...

Part #: 3069b 2× White

Technic Axle and ...

Part #: 32014 4× Black

Technic Axle and ...

Part #: 32015 4× White

Technic Bush 1/2 ...

Part #: 32123b 5× Light Bluish Gray

Technic Pin witho...

Part #: 3673 2× Light Bluish Gray

Technic Brick 1 x...

Part #: 3701 2× White

Technic Brick 1 x...

Part #: 3702 2× Black

Technic Axle 4

Part #: 3705 2× Black

Technic Axle 6

Part #: 3706 3× Black

Technic Axle 8

Part #: 3707 2× Black

Technic Axle 12

Part #: 3708 2× Black

Technic Bush

Part #: 3713 2× Light Bluish Gray

Technic Steering ...

Part #: 3736 2× White

Plate Special 1 x...

Part #: 3794a 2× Dark Bluish Gray

Plate 2 x 6

Part #: 3795 1× White

Brick Special 1 x...

Part #: 4070 2× Black

Hinge Brick 2 x 2...

Part #: 40902 1× Black

Brick Wedged, Cur...

Part #: 41747 1× White

Brick Wedged, Cur...

Part #: 41748 1× White

Technic Pin 1/2 w...

Part #: 4274 4× Blue

Technic Axle Pin ...

Part #: 43093 2× Blue

Hinge Plate 1 x 2...

Part #: 44567a 1× Light Bluish Gray

Hinge Plate 1 x 4...

Part #: 44568 1× White

Technic Axle Conn...

Part #: 45590 1× Black

Cone 1 x 1 [No To...

Part #: 4589 4× Trans-Dark Blue

Windscreen 6 x 6 ...

Part #: 50747 1× Trans-Orange

Brick Sloped 30° ...

Part #: 54200 2× Orange

Equipment Martian...

Part #: 58843 1× White

Cylinder 9 x 4 x ...

Part #: 58947 1× Trans-Orange

Plate Special 1 x...

Part #: 6019 2× Black

Technic Axle 1.5 ...

Part #: 6553 1× Light Bluish Gray

Tile 1 x 6 with G...

Part #: 6636 1× Black

Hose, Ribbed 7mm ...

Part #: 78c04 2× Black

🧱 Sticker Sheet for...

Part #: 59620 1× [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.

🛒 Where to Buy

eBay

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💎 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

Community Insights

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📖 Building Instructions 1

BUILDING INSTRUCTION 7694

Download PDF

Inventory Statistics

Unique Parts

Official Piece Count

Cataloged Inventory Pieces

Minifigures

Spare Parts

The official piece count includes the 7 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Inventory Version: 1

Missing a piece? Use the Missing Piece Checker.