How many pieces are in the Gears 8- and 10-Tooth?

Gears 8- and 10-Tooth contains 18 pieces.

What age is the Gears 8- and 10-Tooth recommended for?

This set is recommended for ages 18+.

When was the Gears 8- and 10-Tooth released?

Gears 8- and 10-Tooth was released in 1994.

🏛 Technic

Set #9965

Gears 8- and 10-Tooth

The Gears 8- and 10-Tooth set is a foundational element for any serious LEGO Technic enthusiast.

🏆 Best For: Technic builders of all ages interested in learning about gears ⏱ 0.25 hr build 🧩 18 pcs

★★★☆☆ 3.5

A basic but essential Technic parts pack. While not a complete building experience, it provides a solid foundation for learning about gears and expanding your Technic collection.

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📝 Our Take

The Gears 8- and 10-Tooth set is a foundational element for any serious LEGO Technic enthusiast. While not a display piece in itself, this small collection of gears unlocks a world of possibilities for building complex mechanisms and exploring the principles of mechanical engineering.

This set is perfect for LEGO builders who want to understand how gears work and incorporate them into their own designs. It's a simple and affordable way to expand your Technic parts collection and learn about gear ratios, torque, and power transmission.

Skip this if you're looking for a complete building experience with instructions and a finished model. This set is purely a parts pack intended for supplementing existing Technic sets or for creative free-building.

✨ New

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Hi! I'm BlockTalk, your LEGO expert. Ask me anything about the Gears 8- and 10-Tooth - building tips, investment potential, comparisons, or anything else!

Try asking:

What are the different gear ratios you can create with these parts? How can these gears be used to build a simple machine? How does this set compare to modern Technic gear packs? Is this set a good investment for Technic parts collectors?

🧱 Building Experience

🧩

Pieces

⏱

0.25h

Build Time

📊

Beginner

Difficulty

Build Highlights:

Simple introduction to gear mechanics
Essential parts for MOC building
Learn about gear ratios and power transfer
Expand your Technic parts inventory

📈 Investment Analysis

→ Price stable

Investment Grade

⏳ Active

As a parts pack, the investment potential of the Gears 8- and 10-Tooth set is limited. Its value lies primarily in the utility of the gears themselves. While Technic parts generally hold their value, this set lacks the collectibility of a complete model. However, given its age and retirement status, it may see a slight increase in value over time, particularly if the gears are in pristine condition. The low piece count and common parts make it a relatively low-risk investment, but also one with limited upside.

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

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This set is best compared to modern Technic parts packs, which offer a wider variety of gears and axles. However, the vintage appeal of this set may be attractive to some collectors. Consider modern Technic gear sets for a broader selection of parts, but this classic pack for a nostalgic touch.

📦 Full Parts Inventory - 2 unique parts • 18 total pieces

Technic Gear 8 Tooth

Part #: 3647 10× Light Gray

Technic Gear 16 T...

Part #: 4019 8× Light Gray

This set contains essential Technic gears in light gray. These gears are useful for building a variety of mechanical devices and experimenting with gear ratios. The classic style of these gears may appeal to vintage Technic collectors.

🛒 Where to Buy

💎 Notable Parts

Light Gray Technic Gear 8 Tooth (10x) $1.00

Light Gray Technic Gear 16 Tooth with Round Holes [Old Style] (8x) $1.20

Est. BrickLink Part Value

$2.20

💡 MOC Potential

🚗 Small gear-driven vehicles

🤖 Basic robotic mechanisms

🌳 Working models of machines

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

Based on 7 videos

3.6 /5

Positive

29% positive

BlockTalk AI

Overall sentiment towards LEGO gears, specifically the 8- and 10-tooth variety (9965-1), is neutral, although one video expresses enthusiasm for its potential in Technic builds. While not explicitly focused on these specific gears, the community appears interested in gear mechanisms, gear ratios, and the rarity of certain Technic gears.

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Community Sentiment

Based on 7 YouTube reviews

Not enough Reddit data

YouTube

3.6 /5

Positive

29% positive

Positive

Mixed

Critical

Common Feedback

+ Amazing

BlockTalk AI Analysis

What the Community Says

5 YouTube reviews

BlockTalk AI Summary

Brick Experiment Channel showcases diverse applications of LEGO gears in complex machinery and explores the limits of LEGO-compatible joints. Unbrickme highlights the historical rarity of certain LEGO Technic gears, appealing to collectors and those interested in the evolution of LEGO elements.