Compact 5-Speed Lego Gearbox(PARTS KIT)

Compact 5-Speed LEGO® Technic Gearbox with Reverse

Physical Parts Set

This compact 5-speed Technic gearbox with reverse delivers realistic transmission behavior in a space-efficient design, making it ideal for tight vehicle builds without sacrificing performance. Designed for smooth shifting and durability, it accurately replicates real-world gear progression from high torque to high speed.

The gearbox features five forward gears plus reverse, with carefully stepped ratios that create clear, noticeable performance differences between each gear. Its compact layout allows for easy integration into Technic supercars, trucks, and custom MOCs, while remaining fully compatible with manual shifting mechanisms or motorized inputs.

Gear Ratios

• 1st Gear: 3.00 (high torque)

• 2nd Gear: 1.80

• 3rd Gear: 1.00 (direct drive)

• 4th Gear: 0.60

• 5th Gear: 0.33 (overdrive)

• Reverse: 0.20

Key Features

• Compact, space-efficient gearbox design

• 5 forward speeds + reverse

• Smooth, reliable shifting mechanism

• Realistic gear ratio progression

• Optimized for durability and consistent operation

• Compatible with manual or motorized drivetrains

Ideal Applications

• LEGO® Technic supercars and trucks

• High-detail drivetrain MOCs

• Functional display models

• STEM and mechanical learning projects

What’s Included

• All required LEGO® Technic parts to build the complete gearbox

• Carefully selected components for proper fit and smooth operation

Additional Notes

• This is a physical parts set — no digital instructions included

• Designed for experienced builders familiar with Technic drivetrains

• Vehicle structure and mounting components are not included

⚠️ Disclaimer: LEGO® is a trademark of the LEGO Group, which does not sponsor, authorize, or endorse this product.