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OVERFAST Aero Alloy Chainrings
The OVERFAST Aero Alloy Chainrings are aero-profiled alloy 2× chainrings, new for 2026. They fit 110 BCD cranks and spiders, ship as a complete matched pair (outer + inner), and are available in 52/36 or 50/34 — with an aero-profiled tooth shape to tidy airflow at the drivetrain.
Spec Snapshot:
Aero-profiled alloy • 110 BCD • 2× pair •
52/36 or 50/34 • Black
OVERFAST Aero Alloy Chainrings — Features & Benefits
- Aero Profiling: a sculpted tooth and arm profile intended to clean up airflow at the drivetrain.
- 2× Gearing: supplied as a complete pair — outer + inner — in 52/36 or 50/34.
- 110 BCD Fitment: mounts to 110 BCD cranks and spiders.
- New for 2026: the latest generation of Overfast's alloy chainring range.
- Durable Alloy: a hard-wearing alloy that balances weight, stiffness and shift quality.
OVERFAST Aero Alloy Chainrings — Specifications
Construction & Interface
- Material: Aero-profiled alloy
- BCD: 110 mm
- Configuration: 2× (outer + inner included)
- Finish: Black
Sizes & Gearing
- Available: 52/36 or 50/34
- Supplied as: a matched pair of rings
- Use: road · fast group rides · time-trial pacing
Compatibility
- Fits: 110 BCD cranks and 110 BCD spiders
- Pairs with: OVERFAST cranksets and other 110 BCD systems
- Best practice: confirm your crank/spider BCD and bolt pattern before ordering.
Shipping Information
- Dispatch: ships once processed and a tracking number is generated.
- Pre-order: made-to-order items ship after the stated lead time.
- Tracking: emailed as soon as the shipment is handed to the carrier.
Warranty Coverage
- Warranty period: 2-year manufacturer warranty
- Coverage: manufacturing defects under normal use
- Wear: chainrings are a wear item; normal tooth wear is excluded.
- Support: handled through Underdogs Cycling.

