Engineered Efficiency. Smooth Power.

The Alugear 1X Oval Chainring is CNC-machined from aerospace-grade 7075-T6 aluminum, balancing extreme stiffness with a lightweight profile. The oval shape is designed to reduce the "dead spot" in your pedal stroke, providing a more constant delivery of power to the rear wheel. This is particularly beneficial on steep gravel climbs where consistent torque is the key to maintaining traction.

Why the Alugear Oval is a Performance Essential:

7075-T6 Aluminum Build: Machined from a single block of high-strength alloy, ensuring a stiff platform for maximum power transfer and exceptional wear resistance.
Advanced Narrow-Wide Tooth Profile: The unique tooth shape grips the chain securely to prevent drops on rough terrain, while the mud-shedding recesses keep the drivetrain running smoothly in adverse conditions.
Optimized Ovality: Features a 10-14% ovality with timing optimized to put the largest diameter where your legs are strongest, effectively smoothing out your cadence.
Shimano 4Arm Compatibility: Designed specifically for an integrated, flush-mount fit with Shimano road cranks (Dura-Ace, Ultegra, and 105), maintaining the clean, aerodynamic lines of the original component. This WILL NOT work on your GRX cranks.
Increased Traction: By smoothing out the torque delivery, the oval shape helps prevent the rear wheel from spinning out on loose or technical gravel climbs.
Stealth Aesthetics: Finished with a high-quality anodization that resists scratches and keeps your bike looking "pro" through seasons of hard riding.

Technical Specifications:

Mounting Type: 110 BCD (4-Bolt Shimano Asymmetric 11Speed)
Shape: Oval (10-14% Ovality)
Material: CNC-machined 7075-T6 Aluminum
Compatibility: 10, 11, and 12Speed chains (including Shimano HG+ and Sram Flattop)
Weight: ~82g (40T)

The Alegro Perspective: Many riders are hesitant about oval rings, but for 1x gravel builds, they are a game-changer. The 40T size is the "perfect" gear. It gives you a 1:1 ratio with most wide-range cassettes for climbing, but still enough top-end to keep up on the club ride. If you're running a Shimano GRX or Ultegra crank, this is the cleanest looking and most efficient 1x conversion on the market.

Optimized Cadence. Zero Chain Drops. Power your Pedaling with Alugear.

Alugear Aero Oval 1X (Shimano 110BCD Asymmetric 11Speed)

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