Magene PES P505 Spider Power Meter 175 mm 50-34T

Safe and Efficient Design
The PES P505 features a symmetrical design and CNC integration technology, ensuring rigidity and significantly improving performance.
The crank features a triple-hollow design that reduces weight for better riding performance.


Wide Compatibility
The PES P505 power meter uses the widely popular 110BCD four-bolt specification, which reduces weight and offers broader compatibility.
The kit includes both the power meter and the crank, eliminating the hassle of selecting a compatible crank.


Accurate Output Data
The PES P505 Base power meter uses high-precision strain gauges and acceleration sensors.
Combined with built-in intelligent temperature compensation algorithms, it can provide you with accurate and reliable power data anytime, anywhere.
The PES P505 Base power meter has been extensively tested in demanding environments to high standards, and each strain gauge undergoes stress relief, ensuring power measurement accuracy of ±1.5%.


Comprehensive Cycling Performance Analysis
The PES P505 tracks 4 key cycling metrics.
It evaluates a rider’s cycling ability from multiple perspectives, including power, cadence, left-right balance, and pedaling smoothness.
It allows riders to track their performance data while riding, adjust their riding rhythm at any time, and perform targeted training.


Data Recording Across Multiple Devices
The PES P505 basic power meter supports ANT+ and Bluetooth connectivity, allowing riders to connect to a wide range of devices, such as bike computers and fitness watches, and is compatible with most fitness apps.
This allows you to record data on multiple devices during a single workout.



Specifications

Weight
650 g


Crankset Length
175 mm

Power Accuracy
±1.5%

Mounting
4 screws (included)

BCD
110 mm

Power Range
0–2500 W

Cadence Range
20–200 RPM

Data Functions
power, cadence, left-right balance, pedaling smoothness

Calibration
automatic calibration, feedback calibration, manual calibration

Wireless protocol
ANT+, Bluetooth

Water resistance
IP67

Q-Factor
147 mm

Operating Temperature
-10 to +50

Battery Life
200 hours

Charging
Magnetic charging

Axle
24 mm


The power meter cannot be used in combination with T47-86.5 mm and BB386 bottom brackets, as these bottom brackets have a larger flange diameter (49 mm) than the power meter’s internal mounting. 
QED 110bcd 50-34T 12s Chainring
Offering an excellent balance of stiffness, weight, and aerodynamics, the QED chainring features a hollow design that can significantly reduce overall weight. This weight-reduction method does not compromise the crankset’s inherent stiffness, resulting in an excellent balance between stiffness and weight.
Precise Interplay of All Components
The use of CNC technology ensures that all components work together flawlessly. Thanks to state-of-the-art CNC technology, machining and positioning are both efficient and precise.
Improved Efficiency and Shifting
After extensive research into the performance and wear characteristics of various sprocket tooth profiles, the QED split sprocket utilizes a completely new, independently developed 3rd-generation tooth profile. Efficiency p