How many pieces are in the 20 Tooth Double Conical Wheels?

20 Tooth Double Conical Wheels contains 25 pieces.

What age is the 20 Tooth Double Conical Wheels recommended for?

This set is recommended for ages 18+.

When was the 20 Tooth Double Conical Wheels released?

20 Tooth Double Conical Wheels was released in 2014.

🏛 Technic

Set #5003139

20 Tooth Double Conical Wheels

The 20 Tooth Double Conical Wheels set is a quintessential Technic parts pack.

🏆 Best For: Technic builders and MOC designers who need a bulk supply of gears ⏱ 0.5 hr build 🧩 25 pcs

★★★☆☆ 3.8

A practical parts pack praised for providing a bulk quantity of essential Technic gears. While not a traditional 'set,' it's considered a useful resource for MOC builders and Technic enthusiasts who need a reliable supply of this specific gear.

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📝 Our Take

The 20 Tooth Double Conical Wheels set is a quintessential Technic parts pack. Released in 2014 as set number 5003139-1, it provides a bulk supply of one of the most useful gears in the Technic system, essential for building complex mechanisms and drivetrains.

This set is perfect for Technic enthusiasts and MOC builders. With 25 identical gears, it's a practical resource for adding functionality and gearing options to your creations, whether you're building robots, vehicles, or kinetic sculptures.

Skip this if you're looking for a complete model to build. This is purely a parts pack; consider sets like the LEGO Technic Monster Jam Grave Digger (42118-1) for a complete building experience.

✨ New

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How can I use these gears to create different gear ratios? What other Technic parts would complement this set for building a basic drivetrain? Is this a good way to expand my collection of Technic gears? How does the price of this set compare to buying the gears individually?

🧱 Building Experience

🧩

Pieces

⏱

0.5h

Build Time

📊

Beginner

Difficulty

Build Highlights:

Provides a large quantity of a useful Technic gear
Ideal for expanding existing Technic sets and MOCs
Simple and straightforward - no complex building required
Great for learning about gear ratios and mechanical systems

📈 Investment Analysis

→ Price stable

Investment Grade

⏳ Active

The 20 Tooth Double Conical Wheels set, being a parts pack, has limited investment potential. Its value lies in the utility of the parts themselves. While Technic parts are always in demand by MOC builders, the lack of unique elements or a specific theme limits its appreciation. Its retirement status may lead to a small increase in value over time, especially if the specific gear becomes harder to find in bulk. However, it's unlikely to become a highly sought-after collector's item.

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

⚖ Compare Similar Sets

🔧

LEGO Technic Gear Set

Bugatti Bolide Agile Blue

Technic • 905 pcs

$49.99

Compared to buying individual gears, this set offers a cost-effective way to acquire a bulk supply of a specific gear type. While it doesn't provide the building experience of a full Technic set, it's a practical choice for builders who need a large quantity of gears for their projects. Consider sets like the LEGO Technic Gear Set (6192783) for a wider variety of gears.

📦 Full Parts Inventory - 1 unique parts • 25 total pieces

Technic Gear 20 T...

Part #: 18575 25× Black

This set is valuable for providing a large quantity of a single, useful Technic gear in black, making it a practical resource for builders creating complex mechanical systems.

🛒 Where to Buy

💎 Notable Parts

Black Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening] (25x) $3.75

Est. BrickLink Part Value

$3.75

💡 MOC Potential

🤖 Robotics platforms with advanced gearing systems

🚗 Detailed vehicle transmissions and differentials

🌳 Kinetic sculptures with gear-driven movement

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

1 video found

BlockTalk AI

Neither Rotary Crafts nor Less Boring Lectures directly reviewed the LEGO 20 Tooth Double Conical Wheel (5003139-1). Rotary Crafts' video focused on Dremel bits, and Less Boring Lectures discussed spur gears and power transmission in a general engineering context.

The Ultimate Dremel Bit Guide

Rotary Crafts • 2.2M views Review

What the Community Says

1 YouTube reviews

BlockTalk AI Summary

Reddit Reviews

No Reddit reviews found

YouTube Reviews

1 video

The Ultimate Dremel Bit Guide

Rotary Crafts

2.2M views Review

Community Content: These reviews are from Reddit and YouTube users sharing their personal experiences. Opinions may vary.

Inventory Statistics

Unique Parts

Total Pieces

Minifigures

Inventory Version: 1

Power Up Your Builds!25-Piece Technic Gear Set