Magene PES P515 Base Power Meter Crankset

The P515 is slightly lighter (~25g), has improved accuracy (1% vs 1.5%), better T47 bottom bracket compatibility, and active temperature compensation.

Yes, the P515 is compatible with T47 bottom brackets including both 68mm and 86mm versions, though some users report needing spacers for certain frames.

Yes, Shimano chainrings (R7000/R8000/R8100) with 110 BCD are compatible with the P515, though chainring thickness may vary requiring spacers.

For Europe, purchase from AliExpress official Magene store. For US, purchase from Magene website. Be cautious of region-locked Chinese versions from third-party sellers.

The P515 uses 24mm spindle and 110 BCD 4-bolt interface, so it's not directly compatible with SRAM's 28.99mm spindle and 8-bolt direct mount. However, you can use compatible chainrings with SRAM flat-top chains.

Spider-based power meters like the P515 estimate L/R balance rather than measuring it directly, so accuracy is limited compared to dual-sided systems.

For optimal accuracy, calibration before each ride is recommended, especially with temperature changes. Some users backpedal 5-10 times as an alternative.

You'll need a 44mm 16-notch bottom bracket wrench (like Park Tool BBT-9) for the spider lock ring, torque wrench, and standard hex keys. No special chainring wrench is needed for Shimano chainrings.

Yes, the P515 is fully compatible with Shimano Threaded BSA bottom brackets (68mm shell width) and existing Shimano 105 chainrings with 110 BCD. No spacers are typically needed for standard setups, and you can reuse your existing bottom bracket.

Early versions used a single-piece preload bolt prone to loss; Magene now uses a two-piece design. Replacement bolts cost around $30-35 shipped and can be sourced from AliExpress sellers, Magene directly, or Panda Podium. Shimano-style aluminum bolts may work temporarily but aren't recommended long-term.

No, the P515 cannot be renamed in the app. The device name is fixed and cannot be customized through the Magene application.

Some users have reported creaking issues, but these often originate from other components like chainring bolts, pedal spindles, or bottom bracket rather than the power meter itself. Proper diagnosis is recommended.

A new firmware version (v0.118) has been released, with an upcoming v0.119 firmware expected by end of June 2026. The v0.119 firmware has been tested by GPLama and approved.

Magene has shown a revised crankset at the Shanghai bike show that attaches from the drive side with a SRAM-style center bolt, potentially addressing creaking issues. This may be available for future production or as a replacement.

The P515 is accurate with oval chainrings because it measures angular velocity continuously using gyroscopes/accelerometers, eliminating the inaccuracies that affect older power meters. Any difference compared to a trainer is likely due to drivetrain loss.

Firmware v0.119 is now available and reportedly improves user experience. However, one user experienced unexplainable power spikes after the update, while others report normal data. It is recommended to calibrate after updating.

The P515 is compatible with gravel builds, including 1x setups with Shimano GRX or SRAM groupsets, as long as chainline is considered. Users have successfully used it with 1x12 and 1x GRX setups.

If you experience creaking, first check chainring bolts for tightness and replace if snapped. Complete disassembly and regreasing of all contact points may help. If creaking persists, it may be from the spider-to-crank attachment, and some users have had to replace the power meter.

The preload bolt can become stuck if greased. To disassemble, use a 6mm and 10mm hex wrench, apply penetrating oil like WD-40, and apply steady pressure. Avoid over-tightening the 6mm nut as it can cause creaking.

Replacement rubber rings for the crankbolt may be available from Magene or as generic o-rings of the correct size. Check the original packaging for spares.

Yes, the P515 uses a 110 BCD spider, so standard Shimano 105/Ultegra/Dura-Ace chainrings fit directly. You may need to adjust the front derailleur slightly due to a small chainline difference.

This is a known issue. Ensure you tighten the preload screw and the two crank bolts to the specified torque (10-12 Nm). Some users apply medium-strength threadlocker (Loctite 243) or use a 1mm spacer on the left side to improve clamping.

Yes, but many users report degraded shifting performance (especially upshifts) due to altered chainline. Shimano original chainrings generally provide the best shifting. Some have success with careful derailleur adjustment or using a spacer.

If you are charged anti-dumping duties (up to 48.5%), you can file an appeal with the customs office, citing that you are a private individual importing fewer than three bicycle parts per month. Many users successfully reclaim these duties.

The PES P515 has a 24mm spindle (Shimano-compatible) and aluminum crank arms, while the TEO P515 has a 29mm DUB spindle (SRAM-compatible) and carbon crank arms, saving about 200g. Both use the same power meter spider.

Most users report accuracy within 1-2% when compared to calibrated trainers like Wahoo Kickr or Tacx Neo. Some see larger discrepancies (up to 5%), which may be due to calibration issues or drivetrain losses.

The PES P515 uses a standard 24mm spindle and works with Shimano Hollowtech II bottom brackets (e.g., BB-R60, BB72-41B). The TEO P515 requires a SRAM DUB bottom bracket (29mm spindle).

Use a strong magnet (e.g., from a Shimano magnet or the charging cable) and swipe it over the status LED area. This performs a hardware reset. Then reconnect via the Magene app.

Use nRF Connect app to connect to the device, find the Nordic UART Service (UUID starts with 6E400001), write 'reset' to the RX characteristic, then reopen Magene Utility app and recalibrate.

Unconfirmed; no user has verified this yet.

Try fully charging the battery, as some users found the unit worked again after a full charge. If not, contact Magene support or return the unit.