Magene QED Split Chainrings

Description

A high-precision, ultra-light chainring engineered for riders who demand
maximum stiffness, smooth shifting, and race-ready durability.
Constructed from 7075 ultra-light aircraft aluminium, the QED
Lightweight Split Chainring offers outstanding stiffness, abrasion
resistance, and deformation resistance while weighing only 143g. This
makes it an ideal upgrade for riders seeking improved performance
without compromising durability.
Using FEA-based stress contour
analysis, Magene reinforces high-load areas to minimise flex under
power, ensuring consistent performance during sprints, climbs, and
long-distance efforts. Precision CNC machining guarantees uniformity,
accurate tooth shaping, and perfect alignment for reliable drivetrain
engagement.
Magene's third-generation tooth profile enhances chain
retention, shifting speed, and overall transmission efficiency.
Redesigned tooth roots, grooves, and shapes allow the chain to move from
the small ring to the big ring in as little as one-fifth of a crank
revolution, even under heavy load.
Compatible with 110 BCD 4-bolt
systems, the QED chainring integrates seamlessly with Magene's P505
power meter and supports 11 and 12-speed Shimano groupsets (excluding
Shimano cranksets with unique shapes).

Specifications

Weight: 143g (50-34T)

Compatibility: Shimano 11 and 12 speed

Bolt: 4 Bolt

Chain Line: 45mm

7075 aircraft-grade aluminium for ultra-light weight and high stiffness

Only 143g total weight with exceptional durability

FEA-optimised structural reinforcement to reduce deformation under load

CNC precision machining for consistent quality and accurate tooth geometry

110 BCD 4-bolt compatibility

Fully compatible with Magene P505 and PES P505 power meter systems

Supports Shimano 11 and 12-speed groupsets (except Shimano-shaped cranks)

Durability tested with over 100,000 fatigue cycles and 40,000 km endurance testing