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Magene P505-S1108 SRAM 8-Bolt Road Power Meter

Niel Ubod May 19, 2024

$349.00

Accurate, affordable, dual-sided power for your SRAM 8-bolt road crankset!

Only 1 left in stock

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Magene P505-S1108 SRAM 8-Bolt Road Power Meter

The Magene P505-S1108 SRAM 8-Bolt Road Power Meter is a spider-based power meter that is compatible with SRAM 8-Bolt cranksets. The Magene P505 measures power from both legs, is +/- 1.0% accurate and features automatic calibration. Weighing only 110 grams and utilizing a rechargeable battery, it is feature rich and allows you to add power to your crankset without changing crank arms or bottom brackets.

The Magene P505 also features a 200 hour ride time, pedal smoothing, IPX7 water and dust proofing. It also uses an app for calibration and has a 2-year manufacturers warranty. It can connect with ANT+ or Bluetooth which allows you to use your favorite indoor training program or app.

 

Key Product Details

Compatibility:

The Magene SRAM 8-Bolt Power Meter is compatible with 8-bolt cranks. This includes the Quarq DUB, Force D1 DUB/GXP, Force D2 DUB and SRAM RED DUB/GXP. Please note this is not compatible with pre-DUB 8-bolt crank arms. Regarding chainrings, it fits 110 BCD 5-bolt and 110 BCD 4-bolt chainrings. See the Compatibility tab for more information.

Power Measurement:

The Magene P505 measures power at the spider and is therefore able to measure power from both legs. It also measures left and right power balance, cadence and pedal smoothing.

Key Features:

Dual-leg power measurement that is accurate to +/- 1.0%, 200 hours of battery life, rechargeable battery, 110 grams, ANT+ and Bluetooth compatibility, auto-zero (automatic calibration). See Specs tab for more information.

Advice From Our Staff:

This Magene Power Meter is a great way to add power to SRAM 8-bolt road cranksets. This is a very affordable way to add a power meter that will provide left and right leg power measurements to your crankset. In addition, since it bolts on to your existing crankset, there is no need to buy new cranks or change bottom brackets.

 

Other Versions to Consider

Magene P505 SRAM 3-Bolt: If your SRAM crankset utilizes the 3-bolt interface, we also have the Magene P505-S1103 SRAM 3-Bolt Power Meter. It is also compatible with both 110×4 BCD and 110×5 BCD Chainrings.

Compatibility

Cranksets: The Magene P505-S1108 SRAM 8-Bolt Power Meter is compatible with 8-bolt Quarq DUB, Force D1 DUB/GXP, Force D2 DUB and SRAM RED DUB/GXP cranksets. Please note this is not compatible with pre-DUB 8-bolt crank arms.

Chainrings: Regarding chainrings, it fits 110 BCD 5-bolt and 110 BCD 4-bolt chainrings. In many cases, you can use your existing chainrings assuming they use the same configuration as the power meter you order.

Note - Some SRAM cranksets come equipped with direct mount chainrings. In this case, you will need to purchase new chainrings as direct mount chainrings won't work with a power meter spider. We have several chainrings to choose from on our Chainrings page.

Magene P505 8-Bolt Specs

NameMagene P505 SRAM 8-Bolt
Bike TypeRoad
Location of Power MeasurementSpider
Left or Both Legs MeasuredBoth
Independent Left/Right MeasurementYes - Power Balance
InstallationMore involved (60 min. estimated)
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 1.0%
Weight110 grams
Battery TypeRechargeable
Battery Life200 hours
Method of Cadence MeasurementAccelerometer
Warranty2 years

In the Box

  • Magene power meter
  • Charging cable
  • User's manual

Tools Needed for Installation

You will need the following tools for installation of this product. You can purchase many of these commonly used tools in our store.

  • T25 Torx bit
  • 10 mm Allen key
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