MyBike.parts
March Seasonal Sale & Choice Day
Reviews & Ratings
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.
View original forum comment in Chinertown-Forum:
Component Deals & Selection → Magene P515 PES Spider Powe...
The 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.
AI-Summary
Pros
- Improved power accuracy (±1%) compared to previous version (±2%)
- Lighter weight (625g for the spindle)
- Longer battery life (330 hours)
- Fully supports T47 and BB 386 bottom bracket standards
- Uses Shimano standard chain rings (110 BCD)
- Available in various crank arm lengths (172.5, 170, down to 160 or 165)
- Competitive price point ($299 USD)
- Reliable data accuracy compared to smart trainer
- Includes clear installation instructions and spare parts (rubber washers)
Cons
- Some lag in data recording during high-torque efforts compared to smart trainer
- Previous version had compatibility issues with T47 bottom brackets (now fixed)
- Some users reported loose play over time if not installed properly
- Chain rings provided by Magene have inferior shift quality compared to Shimano chain rings
Key Points
- Updated version of PES505 power meter
- 24mm spindle compatible with Shimano standards
- 110 BCD chain ring standard
- Includes rubber washers for installation
- Requires proper torque during installation (10-12 Nm for chain ring bolts, 13 Nm for main bolt)
- Uses a preloader bolt (1-2 Nm) to remove initial play
- Data accuracy verified against indoor smart trainer
- Best performance during sustained efforts rather than sprints
Magene P515 : a nice powermeter, works well on my Wahoo Bolt and my Coros Pace. 250€ with coupons
View original forum comment in Chinertown-Forum:
Component Deals & Selection → Interesting Aliexpress find...
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). Users report mixed experiences with compatibility, installation, and customer support.
AI-Generated Forum 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
- Compatible with various chainrings including Shimano, Stone, and aftermarket options
- Works well with ANT+ connectivity (better than Bluetooth in some cases)
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
- Region locking issues with Chinese market versions not working overseas
- Shipping delays and inventory issues from official stores
- Potential creaking issues that develop over time
- Bluetooth connectivity issues with some devices
Key Points
- Replaces P505 with same price point
- Approximately 25g lighter than P505
- 1% accuracy (improved from 1.5%)
- 24mm steel spindle
- 110mm 4-bolt BCD
- Compatible with T47 bottom brackets (both 68mm and 86mm versions)
- Active temperature compensation
- Proprietary crank interface
- Carbon TEO version available with 29mm spindle
Frequently Asked Questions
What are the main improvements over the P505?
The P515 is slightly lighter (~25g), has improved accuracy (1% vs 1.5%), better T47 bottom bracket compatibility, and active temperature compensation.
Is the P515 compatible with T47 bottom brackets?
Yes, the P515 is compatible with T47 bottom brackets including both 68mm and 86mm versions, though some users report needing spacers for certain frames.
Can I use my existing Shimano chainrings with the P515?
Yes, Shimano chainrings (R7000/R8000/R8100) with 110 BCD are compatible with the P515, though chainring thickness may vary requiring spacers.
Where should I buy the P515?
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.
Is the P515 compatible with SRAM groupsets?
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.
How accurate is the left/right balance measurement?
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.
Do I need to calibrate before every ride?
For optimal accuracy, calibration before each ride is recommended, especially with temperature changes. Some users backpedal 5-10 times as an alternative.
The 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.
AI-Summary
Pros
- Cost just £225 (significantly cheaper than competitors)
- Greatly impressed with the results
- Found no downsides
- Very nicely presented
- Looks good
- Very high quality machining
- Easy to install (straight swap for Shimano)
- Stiffness is as good as Shimano Ultegra (no difference when sprinting or climbing)
- Shift performance of the chainrings is very good and the same as Shimano
- Power data is accurate, consistent, and reliable
- Tracks very closely with Wahoo pedals during testing
- Consistency of data is very good
- Provides accurate and repeatable power readings
Cons
- PES branding is quite bold and could be an issue for some people
- Not the best branding
- Initial concerns about the non-drive side crank arm having only one pinch bolt (vs. Shimano's two)
- Reads a bit higher than the Wahoo power meter pedals used for comparison
- Doesn't look terrible, but not amazing
Key Points
- Model: Magene PES P515 Power Meter
- Spider-based power meter
- Charge port
- ANT+ and Bluetooth compatible
- IPX7 waterproof
- Claimed runtime of 300 hours
- Crank arms are machined from aluminium with weight-saving channels
- Spindle is 24mm (Shimano compatible)
- Available in different crank arm lengths (reviewer chose 170mm)
- Comes with separate chainrings
- Chainrings have pins and a ramp profile for shifting
- Uses a single pinch bolt on the non-drive side (unlike Shimano's two)
Where to Buy