The Magene PES P515 is a budget spider-based power meter crankset that delivers accurate, consistent power data and excellent value at around €250–€350, with easy installation on Shimano 24mm bottom brackets. However, users report recurring issues with creaking, left-crank loosening, preload bolt reliability, chainring shift quality, and occasional firmware problems, so careful installation and calibration are essential.
Pros
- Excellent value for money: $299/€299 for power meter, ~$350/€349 with chainrings, often £225–€250 with coupons1234
- Accurate and consistent power data, closely matching smart trainers and reference pedals after calibration2536
- Easy installation as a direct Shimano replacement with standard tools; no need to change bottom bracket2378
- Long battery life (240–380 hours) with magnetic charging and IPX7 water resistance5910
- Compatible with Shimano 110 BCD 4-bolt chainrings, allowing use of existing chainrings; shift performance good with Shimano rings1137
- Lightweight for an aluminum crankset: ~600–625g without chainrings, thanks to hollow crank arms911
- Dual-sided power measurement with cadence and left/right balance estimation257
- Improved accuracy (±1%) and T47 bottom bracket compatibility over previous P505 model1176
- Stiffness comparable to Shimano Ultegra, no noticeable flex during sprints or climbing3
- Widely available in Europe (AliExpress, Amazon, physical stores) and supported by firmware updates97
Cons
- Initial accuracy often reads 4–6.5% higher than reference power meters, requiring user calibration offset12103
- Left crank arm can loosen over time, requiring periodic retightening or threadlocker; preload bolt can become stuck or lost67
- Creaking issues reported, sometimes from spider-to-crank attachment, persisting after regreasing76
- Chainrings provided by Magene have inferior shift quality compared to Shimano; non-Shimano chainrings may degrade shifting116
- Firmware v0.118 can brick the unit or cause 0W reading; recovery requires technical steps and third-party app137
- Proprietary crank interface limits upgrade options to Magene cranks only; not as easy to swap between bikes as pedal-based power meters72
- Some units have lock ring thread defects causing play; compatibility issues with some BB386/T47 frames requiring spacers78
- Import from China may incur unexpected anti-dumping duties (up to 48.5%); region-locked versions and shipping delays reported67
Key Facts
- Claimed weight 625g (spindle), measured 600–653g depending on configuration; with chainrings 786–799g115912
- Claimed accuracy ±1%, but multiple reviewers measured 4–6.5% higher than reference pedals out of the box, requiring a calibration offset12103
- Battery life claimed 240–380 hours (varies by source), magnetic charging, IPX7 water resistance5910
- 24mm spindle, 110 BCD 4-bolt chainring interface, compatible with Shimano Hollowtech II bottom brackets and T47/BB386 with possible spacers7611
- Crank arm material: CNC-machined 7075 aluminum with hollow cavities; available in lengths 165–175mm in 2.5mm increments910
- Q-factor 147mm, power range 0–2500W, cadence range 20–240rpm, ANT+ and Bluetooth connectivity510
- Installation torque specs: lockring 35–40 Nm, crank bolt 12–14 Nm, chainring bolts 10–15 Nm, preload 1.5–2 Nm5117
- Firmware v0.118 caused some units to brick or read 0W; a force reset via nRF Connect (Nordic UART Service) can recover, and v0.119 is now available137
Sources
- 1MyBikePartsEUROBIKE Chinesische Direktsender - Lightcarbon, Xiamen Speed, Magene, iGPSports
- 2MIKE ON BIKEMAGENE PES515 Powermeter im Test ➡️ UNPACKING - MONTAGE - FAZIT
- 3David Arthur - Just Ride BikesI Bought a Cheap Power Meter to Get Faster… Big Mistake or Big Win?
- 4Grumms on ChinertownMagene P515 : a nice powermeter, works well on my Wahoo Bolt and my Coros Pac...
- 5JULEZ | CYCLINGMagene P515 vs. Realität – Wie genau ist der günstige Powermeter? Unboxing, Aufbau und Test
- 6Rennrad-NewsMagene Powermeter
- 7ChinertownMagene P515 PES Spider Powermeter
- 8DrRoB on ChinertownMy short experience with P515. Sale via Ali from the EU shop went very wel...
- 9TheItalianCyclingVLOG🇮🇹2 sources
- 10henrychungfitnessMagene PES515 Budget Power Meter Crankset
- 11Patrick LinoUpgrade Your Shimano Cranks RIGHT NOW! - Magene PES P515
- 12Tom Bowers CyclingThe Best Deal in Cycling? Magene PES 515 Review (With One Catch)
- 13r/cyclingmagene pes p515 stuck at 0w fix
Reviews & Ratings
04:40The reviewer tested the Magene PES P515 Base Power Meter Crankset for a month and found it to be a well-manufactured, accurate budget option. It is an aluminum CNC machined crankset with a 24mm spindle, available in crank lengths from 165mm to 175mm. The power meter can be paired with either the PES aluminum crankset or the Magene KO carbon crankset, and it accepts four-bolt chainrings, including Shimano and other standard chainrings. Priced at $299 USD for the power meter alone, or around $350 with chainrings, it offers good value. The reviewer noted that it reads about 4% higher than Garmin Vector 3 pedals and a Wahoo Kickr Core V2, but after offsetting, the data is quite close. Installation is straightforward but requires careful attention to torque settings to avoid stripping screws. The reviewer recommends it for those who leave their power meter on the bike, not for those who switch often.
16:20The reviewer presents the Magene PES P515 Base Power Meter Crankset as a successor to the P505, which he used for years without issues. He praises its improved design, lighter weight, longer battery life, higher accuracy, and exceptional value for money at €299. He highlights its compatibility with Shimano 24mm bottom brackets and 11-12 speed groupsets, and notes it can be paired with Magene CAD chainrings. He plans to install it on his bike and expects excellent performance.
09:59The reviewer discusses the Magene PES P515 Base Power Meter Crankset after using it for 100-2000 km on a Quota K1 bike. He praises its excellent quality-price ratio, calling it the cheapest power meter crankset on the market at €299, with improved accuracy of around 1% error, lightweight aluminum 7075 construction at 600-620g, and battery life updated to about 320-330 hours. He notes it is reliable, stiff, and widely available in Italy, but mentions the chainrings are only available in Shimano ratios (53/39, 52/36, 50/34) and not yet in 54/40. He recommends it for its performance and value.
13:16The reviewer tested the Magene PES P515 Powermeter-Set, a crank-based power meter that is a more affordable alternative to the pedal-based P715. They found it to be a good power meter that provides accurate and consistent data at a reasonable price, with performance comparable to the more expensive P715 and a smart trainer. The installation process was detailed, and the reviewer highlighted the need for careful handling of plastic parts and proper torque specifications.
17:32The reviewer chose the Magene PES Crank P515 Power Meter after extensive research, comparing it to other power meters like Favero pedals and smart trainers. They highlight its accuracy, dual-sided measurement, and affordability at around €300. The reviewer installed it on their own bike, noting the process is straightforward with basic tools. After 4,500 km of use, they report no issues, no creaking, and improved comfort due to the shorter crank length (170 mm vs. previous 175 mm). They recommend it for cyclists with a single bike who want an accurate, cost-effective power meter.
22:30The reviewer mentions the Magene PES P515 Power Meter Set briefly as part of Magene's product lineup, noting it's an entry-level power meter with an attractive price point.
16:07The reviewer tests and reviews the Magene PES515 power meter, which is a spider-based power meter that comes with a PES crankset. They detail the unboxing, installation on a bike with a Shimano groupset, and extensive testing against other power meters. The reviewer notes the initial accuracy was off by 4-5% compared to their reference pedals, but after applying a calibration offset in the app, it showed excellent precision and repeatability. They conclude it is a very affordable option that requires some user calibration to achieve accuracy.
09:15The reviewer purchased the Magene PES P515 power meter crankset from AliExpress for £225 to improve their winter training. They were greatly impressed with the results and found no downsides. The reviewer found installation straightforward as a direct replacement for their Shimano Ultegra crankset. They tested the power meter's performance against Wahoo Powrlink dual-sided pedals and found the data to be accurate, consistent, and reliable, though it read slightly higher. The crank stiffness was comparable to Ultegra, and the shifting performance of the chainrings was very good, nearly matching Shimano's gold standard. The reviewer concludes it scores really well, especially considering its significantly lower price compared to competitors.
14:02The reviewer discusses the Magene PES Crank P515 Power Meter extensively, highlighting its updates from the previous PES505 model. They mention its compatibility with Shimano standards, improved accuracy, lighter weight, longer battery life, and support for T47 and BB 386 bottom bracket standards. The reviewer compares its data accuracy against their indoor smart trainer and finds it to be reliable, especially during sustained efforts. They also note the importance of proper installation to avoid loose play issues.
A user reports that updating the Magene PES P515 power meter to firmware v0.118 caused it to get stuck at 0W and fail calibration. Magene support provided a force reset method using nRF Connect to send a 'reset' command via the Nordic UART Service. The fix resolved the issue for the original poster, but other users report persistent connectivity problems and bricked units even after the reset. Some users advise against updating, and there are complaints about poor support and app limitations.
AI Summary
Pros
- Affordable power meter option
- Force reset method available from support
- Quick support response for some users
Cons
- Firmware v0.118 can brick the unit or cause 0W reading
- Force reset requires technical knowledge and third-party app
- Magene Utility app is basic and lacks advanced features
more cons in the review
Key Points
- Firmware v0.118 caused calibration failure and 0W reading
- Force reset command: 'reset' via Nordic UART Service (UUID 6E400001) RX characteristic
- nRF Connect app required for force reset
more key points in the review
The Magene PES P515 Power Meter is a spider-based power meter for 24mm Shimano-compatible cranksets, offering dual-sided power measurement at a competitive price (typically €200-300). Users praise its accuracy (often within 1-2% of trainers like Tacx Neo and Jetblack Victory), ease of installation, and value. However, common issues include a loose left crank arm (requiring periodic tightening or Loctite), occasional calibration drift, and shifting problems with non-Shimano chainrings (e.g., Alugear, Pass Quest) due to slightly different chainline. The newer P515 model improves on the P505 with better accuracy (±1%), longer battery life (240h), and slightly lower weight (625g). Import from China may incur unexpected anti-dumping duties, though many successfully reclaim them.
AI Summary
Pros
- Excellent value for money compared to competitors like Shimano or SRAM power meters.
- Accurate power measurement, often within 1-2% of high-end trainers and pedal-based meters.
- Easy installation and setup with clear instructions; works with standard Shimano 24mm bottom brackets.
more pros in the review
Cons
- Left crank arm can loosen over time, requiring periodic retightening or threadlocker.
- Shifting performance may degrade with non-Shimano chainrings (e.g., Alugear, Pass Quest) due to altered chainline.
- Firmware updates can occasionally brick the power meter, requiring a magnet reset.
more cons in the review
Key Points
- Spider-based power meter for 24mm Shimano-compatible cranks (PES P515) or 29mm DUB (TEO P515).
- 110 BCD chainring interface, compatible with Shimano 105/Ultegra/Dura-Ace chainrings.
- Accuracy: ±1% (P515) or ±1.5% (P505).
more key points in the review
The Magene PES P515 Power Meter is an updated version of the P505, featuring minor improvements including slightly reduced weight (approximately 25g lighter), improved accuracy (1% vs 1.5%), better T47 bottom bracket compatibility, and active temperature compensation. It maintains the same price point as its predecessor. The power meter uses a 24mm steel spindle, 110mm 4-bolt BCD, and is compatible with standard road bike bottom brackets (68mm-86.5mm) including Shimano Threaded BSA setups. Installation requires standard tools plus a 44mm 16-notch bottom bracket wrench for the spider lock ring. Users report mixed experiences with compatibility, installation, and customer support, with additional concerns about preload bolt reliability—early versions had single-piece designs prone to loss, though Magene has since switched to a two-piece design. Replacement parts are available but may require international shipping. Some units have lock ring thread defects causing play in spider installation. Creaking issues have been reported but often originate from other components; however, persistent creaking may be due to spider-to-crank attachment and some users have had to replace the unit. Firmware v0.119 is now available and generally improves user experience, though one user reported power spikes after updating, which may be resolved by recalibrating. The P515 is accurate with oval chainrings due to continuous angular velocity measurement. It is also compatible with gravel builds, including 1x setups with Shimano GRX or SRAM groupsets. Users have noted that the preload bolt can become stuck if greased, requiring penetrating oil and careful disassembly. Rubber rings for the crankbolt may be lost and replacements can be sourced as generic o-rings.
AI Summary
Pros
- Good value for money with competitive pricing around €250-£250
- Improved T47 bottom bracket compatibility compared to P505
- Active temperature compensation for consistent readings
more pros in the review
Cons
- Proprietary crank interface limits upgrade options to Magene cranks only
- Compatibility issues with some BB386 and T47 frames requiring spacers
- Poor customer support and communication from Magene
more cons in the review
Key Points
- Replaces P505 with same price point
- Approximately 25g lighter than P505
- 1% accuracy (improved from 1.5%)
more key points in the review
Magene P515 : a nice powermeter, works well on my Wahoo Bolt and my Coros Pace. 250€ with coupons
My short experience with P515.
Sale via Ali from the EU shop went very well, delivery took 3-4 days more then expected. Crank looks very good, marginal heavier than the 105. Assembly was also no problem, I ordered it with the QED chainrings. Installation on my Lightcarbon LCR017 was not a big problem, I did however have to add a spacer on the drive side because otherwise there would have been play between the two arms. First 100k tour was also problem-free, recording in. Compared to the power meter pedals seems to be lower in the numbers, maybe still needs to be calibrated. What I also noticed is that the QED chainrings are louder than my 105 crank.
I hope this can help you a little.
Best regards.
JULEZ10PATRICKLINOPattyL75Where to Buy

Magene PES P515 Power Meter Crankset


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Magene PES P515 Power Meter Set

Magene PES P515 Powermeter-Set
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