QED Split Chainring

QED P325 Power Meter

Advanced Level - Witness Every Transformation of Spirit and Strength

QED P325 power meter stands out for its precise, smooth shifting and excellent transmission efficiency and reliable stiffness. With the DUB spindle compatible with most bottom bracket shells, it’s easy to install and use. The ±1.5% data accuracy helps riders explore and reach their goals at all times, regardless of the weather.

Precision CNC, Integrated Molding

The ultimate product experience is what Magene has always sought, and the QED P325 power meter was born. The QED crank adopts II-GEN hollow crank technology to strengthen the structure. The crank is integrally molded by applying precise CNC and deep-hole drilling techniques. In comparison with other brand products under the same weight, the vertical stiffness of the QED crank is 12% stronger.

Optimal Balance Design of Weight and Stiffness

Lightweight design and excellent stiffness are our concepts when designing products. QED P325 power meter’s crank is made of ultralight 7075 aircraft-grade aluminum, which can better reduce the weight of the product. Adopts a geometric structure, and has better stiffness and durability. Riders can get a comfortable riding experience and can accelerate faster.

Accurate and Smooth Speed Control

The basic principle of the design is accurate and smooth speed control, and the key to realizing this is the design of the speed control function area. QED P325 power meter adopts an intelligent configuration of speed change structure, through the optimal configuration of the speed control functional area, which can help riders to control their speed at will. Optimized design of mechanical transition zone to improve the efficiency of the rider's shifting on a rainy day and muddy roads.

Highly Compatible DUB Spindle

QED P325 power meter adopts a highly compatible DUB spindle, which is compatible with most bottom bracket shells on the market, it’s easy to use and install. The spindle is made of 7075 aircraft-grade aluminum and has a larger diameter design, lighter weight, better stiffness and better waterproof performance than the normal 24mm steel spindle.

Accurate and Reliable Data Measurement

QED P325 power meter follows Magene’s years of power advanced algorithm, up to ±1.5% power accuracy. Support power, cadence, left and right balance, torque effectiveness, pedaling smoothness data, comprehensively learn rider's riding rhythm, outputs the difference between left and right leg, learns pedaling pattern and power data balance of pedaling cycles. Help riders to carry out targeted training and improve the efficiency of pedaling and reach their riding goals.

Perfectly Compatible with Fitness Devices and Apps

Compatible with various ANT+™ and Bluetooth devices and can be connected to major brand bike computers such as Magene, Garmin, Bryton, etc. And training APPs such as Onelap, OnelapFit, Zwift, etc. So that you can record data in multiple interfaces for one workout.

User feedbacks on our products

Product Introduction


Chainring Set
165; 167.5 ;170; 172.5; 175
Supported Speed
11-12 Speed
Spindle Type
Power Accuracy
Power Range/W
Cadence Range/rpm
Data function
Power, cadence, left-right balance, torque effectiveness, pedaling smoothness
Calibration Method
Manual Calibration
Wireless Protocol
ANT+& Bluetooth
Waterproof Grade
Working Environment
Magnetic Charging
Battery Life
200 h
24 Months for Power Section, 12 Months for Mechanic Section


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