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

Description

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0:00 price update
1:03 video introduction
3:24 why it is so good
5:09 what bike im installing
5:45 whats inside the box
8:04 crank arm sizes and cadence
9:09 prepping my bike for install
9:35 weight difference??
12:12 installing chainrings on crank
13:10 NEWTON METERS
14:22 finished product beautiful!!!
15:20 how it looks on bike
16:57 test day
17:11 I GOT DROPPED
19:20 POWER TEST RESULTS
22:03 USE MAGENE APP TO SETUP
22:22 should you buy?
23:00 why i got dropped lol

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Bike part mentions in this video

Magene Power Meter PES P505 Base 4 Bolt 110 BCD 24mm Cadence Pedal Balance Ant Steel Spindle Crankset Chainring for Shimano Sram

Created: July 04, 2025

The reviewer extensively discusses the Magene Power Meter PES P505 Base 4 Bolt 110 BCD 24mm Cadence Pedal Balance Ant Steel Spindle Crankset Chainring for Shimano Sram throughout the video. They highlight its compatibility with Shimano bottom brackets, 110 BCD chainrings, and 24mm spindle, making it a direct replacement for Shimano cranks. The reviewer emphasizes its value at $300 (with a discount bringing it down to $270), its 1.5% accuracy rating, and its performance compared to higher-end power meters like the Favero Assioma pedals. They also note its IP67 waterproof rating, ANT+ and Bluetooth compatibility, and the inclusion of cadence data. The reviewer tested it against Favero Assioma pedals and found the power readings to be very close, especially when the head unit was positioned correctly.

AI-Summary

Pros

  • Compatible with Shimano bottom brackets and chainrings
  • 110 BCD and 24mm spindle for easy installation
  • Affordable at $300 (discount to $270 available)
  • 1.5% accuracy rating, comparable to industry standards
  • IP67 waterproof rating
  • ANT+ and Bluetooth compatibility
  • Includes cadence data
  • Lightweight (635g for the set)
  • Good power balance estimation (49/51)
  • Works with existing Shimano chainrings
  • Q factor of 146mm, close to Shimano's 147mm
  • Available in various crank lengths (165mm, 170mm, 172.5mm, 175mm)
  • Good performance in real-world tests against Favero Assioma pedals

Cons

  • Not a true dual-sided power meter (estimates left/right power balance)
  • Initial power readings were skewed when the head unit was in a jersey pocket
  • Requires calibration via the Magene app
  • Chain rub noticed during installation (though easily adjustable)

Key Points

  • 24mm spindle compatible with Shimano bottom brackets
  • 110 BCD for use with Shimano chainrings
  • 1.5% accuracy rating
  • IP67 waterproof
  • ANT+ and Bluetooth compatible
  • Includes cadence data
  • Q factor of 146mm
  • Weighs 635g for the set
  • Available in 165mm, 170mm, 172.5mm, and 175mm crank lengths
  • Requires calibration via Magene app
  • Max wattage reading of 2500 watts
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