Magene QED P505 Power Meter Crankset

QED ROAD BIKE CRANKSET
Witness Every Transformation of Spirit and Strength

QED road bike crankset adopts DUB spindle, which is compatible with most bottom brackets. The 7075 aircraft-grade aluminum makes it weight only 665g. It achieves exquisite balance among stiffness, weight and durability with II-GEN hollow technology and integral design.

II-GEN HOLLOW CRANKSET TECHNOLOGY
QED crank is made of ultralight 7075 aircraft-grade aluminum, which adopts II-Gen top triple hollow design to strengthen the structure. The crank is integrally molded by applying precise CNC and deep-hole drilling techniques. The vertical stiffness of QED crank is 12% stronger.

INTEGRATED, BOLT-FREE, GEOMETRIC CHAINRING
The bolt-free and geometric structure makes QED chainring lighter and have better lateral stiffness. It achieves better transmission efficiency in extreme cases where maximum or minimum cassette is applied. The chainring provides the exquisite balance of weight, stiffness and durability performance.

ACCURATE AND SMOOTH SPEED CONTROL
QED chainring with different teeth ratio is equipped with different number of functional areas. It also adopts splicing structure of double center and straight groove under optimized design of mechanical transition zone.
Thus, the speed control efficiency has been improved by 14%, and it is perfectly compatible with 10-12 speed chains.

HIGHLY COMPATIBLE, STIFF, LIGHT DUB SPINDLE
QED spindle is made of 7050 aircraft-grade aluminum. The larger diameter design of DUB has lighter weight, better stiffness and better waterproof performance than the common 24mm steel spindle.

DIVERSE POWER SOLUTION OPTIONS
QED crankset P505 spider-based power meter breaks the chainring limitation, and can adapt to both 110BCD 4-arm and 5-arm chainring

COMPREHENSIVE & ACCURATE DATA COLLECTION
You can learn your pedaling status and riding capability scientifically. The power meter will collect the data of your power, cadence, left and right balance, torque effectiveness, and pedaling smoothness, helping you reach your goals.

ACCURATE AND RELIABLE DATA MEASUREMENT
Apply top class strain gauge. Fully automated calibration equipment, F1 class standard weight high-accuracy calibration.
Feature precise algorithm and passed strict tests. Power measurement remains reliable in a large number of harsh condition tests.

SUPER EASY CALIBRATION OPERATION
Auto-calibration: smart auto-calibration without any operation.
Backpedal calibration: backpedal 5 cycles to complete calibration.
Manual calibration: support APP calibration and bike computer zero calibration.
*QED P505 spider-based power meter crankset supports all above; while QED P325 dual-sided crank power meter only supports manual calibration.

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

QED Crankset P505 Spider Power Meter Specification
Average weight: 618g
Chainring set: /
Crank(mm): 165;167.5;170;172.5;175
Supported speed: 9-12 speed
Spindle type: DUB
Power accuracy: ±1%
Power range: 0~2500w
Cadence range: 20~240rpm
Data function: Power, cadence, left-right balance, pedaling smoothness
Calibration method: Auto-calibration, backpedaling calibration, manual calibration
Wireless protocol: ANT+™ Bluetooth
Waterproof grade: IPX7
Working environment: -10~50?
Charging: Magnetic charging
Battery life: 200 hours<br style="box-sizi