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Magene P505 Power Meter - SRAM 3 Bolt - 110 BCD

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P505 SPIDER-BASED POWER METER - Leads you to the ridge of cycling
Integrating multiple compatibilities, core function, and colourful laser stickers with reliable battery life, P505 Spider-based Power Meter will provide a powerful cycling experience, improving your performance in a scientific and effective manner.

4-Arm & 5-Arm chainrings can be switched freely. Both single & oval chainrings can be adapted.
P505-S1108/S1103/R110X supporting various 110BCD 4-arm and 5-arm chainrings.


  • Spider-Based Power Meter
  • Weight(excluding stickers): 110g (based on P505-S1078)
  • Power Accuracy: ±1%
  • Power Range: 0 ~ 2500w
  • Cadance Range: 20 ~ 240rpm
  • Data Functions: Power, Cadence, Left-right balance & Pedaling smoothness
  • Calibration: Automatic, Back Pedal & Manual calibration
  • Wireless Interface: ANT+, Bluetooth
  • Water Resistance: IPX7
  • Battery: Magnetic base rechargeable lithium battery
  • Battery Life: 200H
  • Warranty: 2 years

BOX CONTENTS: P505 series Spider-Based Power Meter, magnetic charging cable, manual, Shimano 4-arm chainring sticker * 3, Sram AXS chainring sticker * 3


Compatible Chainrings:
P505-S1108 / R110X / S1103: Shimano 110BCD 4-arm chainring; Sram, Rotor, FSA, etc. 110BCD 5-arm chainring
P505-S1078: Sram 107BCD 4-arm chainring

Compatible Crank Arms
P505-S1108 / S1078: Sram 8-bolt crank arm (with Sram Red AXS, Force AXS, Red 22, and Quarq, etc.)
P505-S1103: Sram 3-bolt crank arm (with SRAM Force 22, Rival 22, S-900 etc.)
P505-R110X: Rotor Aldhu, Vegast etc. 45-tooth crank arm


Free Shipping on orders over $99 (excludes some large/oversized items). 

Same Day Dispatch on orders before 3pm (excludes bikes).

Delivery times will vary from 2-5 business days for metro areas and 7-14 business days for rural and remote areas.

Read more: Shipping Information.

Returns & Refunds

For more information on our refund policy please check below.

Read more: Returns & Refunds.