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Finally! An accurate power meter without breaking the bank. 

And it's directly compatible with the Shimano bottom bracket.

But before we get to that...

The Magene PES P505 Base Power Meter offers cyclists a power meter with professional performance of stiffness and shifting.

It's Versatile.

The PES P505 Base power meter adopts the widely popular 110BCD four-bolt specification, which reduces weight and has more comprehensive compatibility. 

It has the 24mm Steel Spindle.

Making it compatible with SHIMANO Bottom Brackets. You can install it directly without replacing the bottom bracket.

It has Powerful Data Performance

Not only does it provide precise and reliable power data, but it has been extensively tested in harsh environments. The PES P505 Base power meter guarantees a ±1.5% power accuracy.

Collects FOUR Essential Cycling Data.

Power, cadence, left and right balance, and pedaling smoothness.

High Connectivity

Support for ANT+ and Bluetooth allows riders to connect to a wide range of devices, such as bike computers, fitness watches, and supports most fitness apps.

Plenty of positive reviews:

A Budget Power Meter That Exceeds All Expectations // Magene PES P505 Base Power Meter Review

*MAGENE PES P505 BASE* IF YOU HAVE SHIMANO CRANKS, YOU NEED THIS POWER METER CRANK!!

What's in the box?

• Pair of PES Cranksets*1
•  Spider-based Power Meter*1
•  Lock Ring of Conversion Kit*1
•  Set of Chainring Bolts*1
•  Magnetic Charging Cable*1
•  Colorful Stickers*6
•  User Manual*1