7-Speed Tensioner & Derailleur Set – CNC Lightweight Upgrade Kit For Folding Bikes

Product Introduction

The 7-Speed Tensioner & Derailleur Set is a precision upgrade component designed for folding bike drivetrain systems. Made from lightweight aluminum alloy with full CNC machining, it improves shifting flexibility while adding a refined mechanical appearance. Designed for riders seeking enhanced gear range and smoother riding performance.

Product Features

⚙️ CNC Machined Aluminum Construction

Made from high-quality aluminum alloy with precision CNC machining, providing a lightweight structure and detailed finish for upgraded drivetrain performance.

🚴 Expanded 7-Speed Compatibility

Supports 1-speed to 7-speed setups and works with cogs up to 30T, offering more flexible gearing options for different riding conditions.

🔧 Optimized Tensioner & Chain Guidance Design

Features adjustable narrow-wide pulley wheels, an improved chain guide structure, and a longer tensioner arm for better chain positioning and folding performance.

Product Specifications

• Product type: Bicycle tensioner & derailleur upgrade set
• Material: Aluminum alloy
• Manufacturing: Full CNC machining
• Speed support: 1-7 speed
• Maximum cog size: Up to 30T
• Compatible models: Folding bikes with compatible drivetrain systems
• Pulley design: Narrow-wide jockey wheels
• Weight: Approx. 93g tensioner

Package Includes

1 × Rear Derailleur
1 × Chain Tensioner
1 × Spindle Axle Shaft
1 × Installation Hardware Set

🚴 Upgrade your folding bike drivetrain with precision CNC components designed for smoother shifting, lighter performance, and refined mechanical control.