Installation & Fitment Notes Notes

• Professional installation recommended
• Please confirm crank and BCD compatibility before ordering
• Use manufacturer-recommended torque settings

Aero Efficiency Meets Lightweight Drivetrain Performance

The OVERFAST Alloy Chainring Series is engineered for riders seeking the ideal balance of aerodynamic efficiency, lightweight construction, and smooth shifting performance.

Designed for modern road bikes, aero race builds, and lightweight climbing setups, the OVERFAST chainring lineup includes both Aero Closed Design and Lightweight Hollow Design versions to match different riding styles and performance goals.

Manufactured from premium 7075-T651 aluminum alloy, these precision CNC-machined chainrings deliver high stiffness, durability, and crisp front shifting under high-load race conditions.

Aero Closed Design

Designed for improved aerodynamic efficiency and a clean integrated race-bike appearance.

• 50/34T Aero Chainring
• 52/36T Aero Chainring

Lightweight Hollow Design

Optimized for reduced weight and responsive acceleration.

• 50/34T Hollow Lightweight Chainring
• 52/36T Hollow Lightweight Chainring

Core Features & Performance

• Aero and lightweight design options available
• Precision CNC-machined construction
• High-strength 7075-T651 aluminum alloy
• Smooth and reliable front shifting
• Excellent stiffness-to-weight ratio
• Optimized for modern road bike drivetrains
• Race-focused performance design

Technical Specifications

• Configuration: 2X
• Available Sizes:
  • 50/34T
  • 52/36T
• BCD: 110 × 4
• Material & Construction: 7075-T651 Aluminum Alloy

Lightweight Hollow Version Benefits

• Reduced overall drivetrain weight
• Faster acceleration response
• Climbing-focused performance
• Lightweight race-bike optimization

Designed For

Perfect for:

• Road Bikes
• Aero Road Bikes
• Lightweight Climbing Builds
• Endurance Race Bikes
• Performance Road Platforms

Why Riders Choose OVERFAST

• Lightweight race-focused construction
• Aero styling for modern road bikes
• Excellent stiffness and power transfer
• Smooth front derailleur performance
• Durable CNC-machined alloy structure
• Ideal for drivetrain performance upgrades

Material & Construction

• CNC Machined 7075-T651 Aluminum Alloy

Product Overview

Available Versions

Aero Version Benefits

• Improved aerodynamic profile
• Clean integrated race appearance
• Optimized for aero road bikes
• Excellent high-speed efficiency