Magene P515 PES Spider Powermeter

[kbernstein]

Well there are several incompatibilities:

Magene PES P515 vs SRAM Rival XPLR AXS 13 sp
BB spindle: 24mm vs 28.99mm
Crank to spider interface: Magene proprietary vs SRAM 8 bolt Direct Mount
Spider: 110 BCD 4 bolt (Shimano) vs N/A for SRAM Direct Mount
Chainrings: best to have narrow-wide teeth for 1x and it will need to be compatible with SRAM flattop road chains.

I suppose you could get a Magene P515 with a T47 24mm BB and a Wolf Tooth 110 BCD 4 bolt 1x chainring with Drop-Stop B and that will work with a SRAM flattop road chain.

I don't see the problem with spindle size or "proprietary spider interface" (it's just 110BCD4) since he mentioned a garbaruk chainring. He can just get the right BB for the P515 and any 4 bolt 110BCD chainring (am I blind or does garbaruk not make any?). Flat top isn't necessary on 1x

[Stubbie Blue]

I don't see the problem with spindle size or "proprietary spider interface" (it's just 110BCD4) since he mentioned a garbaruk chainring. He can just get the right BB for the P515 and any 4 bolt 110BCD chainring (am I blind or does garbaruk not make any?). Flat top isn't necessary on 1x

I included it for completeness and because some SRAM or third party chainrings for XPLR 1x are 8 bolt direct mount straight to the spindle with no spider, so they wouldn't work with the Magene P515. But I did look a bit more and Garbaruk does have one for 110 BCD 4 bolt:

https://global.garbaruk.com/shop/garbaruk-chainring-for-shimano-ultegra-8000-849?category=7#attribute_values=72,79,30

The latest SRAM Rival E1 XPLR 13 speed is made for a SRAM Road flattop chain with larger rollers, so when using a narrow-wide 1x chainring, the teeth have to be compatible with the flattop chain. You may be thinking about SRAM Eagle 1x12 sp which did not use a flattop chain.

[sbixify]

I looked a bit more into it and asked ChatGPT to check for issues. I found this setup should be compatible and work:

Alugear 110bcd 4 bolt chainring compatible with SRAM 12 speed Flattop chains (https://alugear.com/chainrings-1x/290-15630-round-1-speed-for-12sp-110-bcd-4b-shimano-asymmetric-roadgravel.html#/27-color-silver/33-size-38t)
T47 24 mm bb (https://www.aliexpress.com/item/1005005447989967.html)

I also noticed another user with the same setup here (Magene P505 though, but Flattop chain): https://chinertown.com/index.php/topic,6184.0.html

I'll go ahead and pick up the P515

[stalkersk]

I used cheap Deckas chainrings with flattop chain without any issues. For 2x passquest has axs covered for 110bcd 4 or 5 bolt:)

[Lumenir]

I just bough the P515 powermeter

After installing and torquing everything up to specs, calibration gives me an offset of -39.
Is it normal? seems a bit high for me.

Anyone else got high values?

[Ludo]

I haven’t received yet, what is this offset supposed to be measuring?

[GSoroos]

I just bough the P515 powermeter

After installing and torquing everything up to specs, calibration gives me an offset of -39.
Is it normal? seems a bit high for me.

Anyone else got high values?

I don't really know what the number corresponds to, but I think that's close to what I see when I do it with my app or headunit. A lot of time I don't bother doing that and just backpedal the crank 5-10 turns before starting a ride.

I do also know that my stages MTB left crank arm reads a totally different number when I calibrate. I want to say something like 118 or something. Again not sure what it coresponds to, but it's fairly consistent, AND I assume the power readings while riding "feel" similar to efforts between bikes.

[Avalius]

Anyone else has creaking with these cranksets? Been riding these for a while now. And had like 3 or 4 different units they all develop creaking over time. Friends have the same issue.
Already tried this multiple times:
If anyone has an idea, friends don't hear it when riding next to me but I hear it lol

[flix]

Hi everyone,

I’d like to confirm the compatibility of the Magene P515 powermeter crankset with my current bike setup and make sure I have all necessary tools and components before starting the installation.
I've never installed a powermeter or changed my crankset before, so I want to be sure that everything is compatible before I order it.

My current bike setup:
   •   Bike: Canyon Endurace CF SL 8.0 Disc (https://www.canyon.com/en-de/endurace-cf-sl-disc-8.0/2185.html?dwvar_2185_pv_rahmenfarbe=BK%2FGY&dwvar_2185_pv_rahmengroesse=S&history=1)
   •   Groupset: Shimano Ultegra R8000 (50/34 chainrings)
   •   Bottom bracket: Shimano Pressfit BB72 (PF86.5)
   •   Crankset: Shimano FC-R8000 (Hollowtech II (24 mm spindle)) (https://bike.shimano.com/en-NA/products/components/pdp.P-FC-R8000.html)

Magene PES 515 Info I've found:
   •   Comes with PES20 crank arms (24 mm steel spindle)
   •   Uses standard 110 mm 4-bolt BCD
   •   Magene offers its own QED chainrings, but I’d prefer to reuse my existing Ultegra R8000 chainrings if possible.

My main questions:
   1.   Is the Magene P515 crankset fully compatible with my bike (PF86.5 BB72, Ultegra R8000, 24 mm spindle)?
   2.   Can I reuse my existing Ultegra R8000 chainrings, or do I need to buy Magene’s QED chainrings due to BCD differences (as Shimano’s 110 BCD is asymmetrical (ChatGPT said that they are not compatible))?
   3.   Do I need to replace the bottom bracket, or can I use the existing one (it’s running smoothly)?
   4.   Did I forget any essential tools or parts?

Tools I already own:
   •   Allen keys
   •   Torque wrench (up to 25 Nm)

Tools I think I still need to buy:
   •   Shimano TL-FC16 (for the preload cap)
   •   Chainring nut wrench (for removing/reinstalling chainrings)
   •   Threadlocker (Loctite 243) or grease for chainring bolts

I’m not planning to remove or replace the bottom bracket, so I assume I don’t need tools like the Park Tool BBT-9 (for threaded BBs) or press-fit tools.
Any confirmation or corrections would be much appreciated. Thanks!

[Stubbie Blue]

Hi everyone,

I’d like to confirm the compatibility of the Magene P515 powermeter crankset with my current bike setup and make sure I have all necessary tools and components before starting the installation.
I've never installed a powermeter or changed my crankset before, so I want to be sure that everything is compatible before I order it.

My current bike setup:
   •   Bike: Canyon Endurace CF SL 8.0 Disc (https://www.canyon.com/en-de/endurace-cf-sl-disc-8.0/2185.html?dwvar_2185_pv_rahmenfarbe=BK%2FGY&dwvar_2185_pv_rahmengroesse=S&history=1)
   •   Groupset: Shimano Ultegra R8000 (50/34 chainrings)
   •   Bottom bracket: Shimano Pressfit BB72 (PF86.5)
   •   Crankset: Shimano FC-R8000 (Hollowtech II (24 mm spindle)) (https://bike.shimano.com/en-NA/products/components/pdp.P-FC-R8000.html)

Magene PES 515 Info I've found:
   •   Comes with PES20 crank arms (24 mm steel spindle)
   •   Uses standard 110 mm 4-bolt BCD
   •   Magene offers its own QED chainrings, but I’d prefer to reuse my existing Ultegra R8000 chainrings if possible.

My main questions:
   1.   Is the Magene P515 crankset fully compatible with my bike (PF86.5 BB72, Ultegra R8000, 24 mm spindle)?
   2.   Can I reuse my existing Ultegra R8000 chainrings, or do I need to buy Magene’s QED chainrings due to BCD differences (as Shimano’s 110 BCD is asymmetrical (ChatGPT said that they are not compatible))?
   3.   Do I need to replace the bottom bracket, or can I use the existing one (it’s running smoothly)?
   4.   Did I forget any essential tools or parts?

Tools I already own:
   •   Allen keys
   •   Torque wrench (up to 25 Nm)

Tools I think I still need to buy:
   •   Shimano TL-FC16 (for the preload cap)
   •   Chainring nut wrench (for removing/reinstalling chainrings)
   •   Threadlocker (Loctite 243) or grease for chainring bolts

I’m not planning to remove or replace the bottom bracket, so I assume I don’t need tools like the Park Tool BBT-9 (for threaded BBs) or press-fit tools.
Any confirmation or corrections would be much appreciated. Thanks!

• It should be compatible with your bottom bracket and R8000 chainrings.
• You don't need a chainring nut wrench for the Shimano bolts because the nuts are built in to the large chainring.
• You will actually need a 44mm 16 notch bottom bracket wrench like the Park Tool BBT-9 but you'll use it for the Magene spider lock ring. Also, get the wrench style and not a socket/cup style because it has to fit over the spindle. Torque spec is 35-40 Nm but you may have to just guess if your wrench doesn't have a 3/8" square drive hole for a torque wrench.

[triglav]

How do you take the new preload bolt out?
I got it out with the 10mm hex but can't take the two pieces apart, shouldn't the o-ring break? Should I first unscrew with a 6mm hex and then 10mm? After putting it back in it seems fine but after reading about the old ones slipping out I'm pretty hesitant to ride like this.

[Stubbie Blue]

How do you take the new preload bolt out?
I got it out with the 10mm hex but can't take the two pieces apart, shouldn't the o-ring break? Should I first unscrew with a 6mm hex and then 10mm? After putting it back in it seems fine but after reading about the old ones slipping out I'm pretty hesitant to ride like this.

I think the inner part was reverse threaded so you should use a 10mm hex to hold the outer part and a 6mm on the inner part and turn it clockwise (when looking at it from the back).

[Fatbonzo]

Anyone else has creaking with these cranksets? Been riding these for a while now. And had like 3 or 4 different units they all develop creaking over time. Friends have the same issue.
Already tried this multiple times:
If anyone has an idea, friends don't hear it when riding next to me but I hear it lol

I had some creaks, but they disappeared shortly after, but just did a few hours

[triglav]

I think the inner part was reverse threaded so you should use a 10mm hex to hold the outer part and a 6mm on the inner part and turn it clockwise (when looking at it from the back).

My thoughts also, but I couldn't get it out for the life of me. It might be easier when the whole bolt is screwed in. I will be replacing the original chainrings to Stone ones in the next two weeks so that's when I will be trying again.

[omzebras]

Can someone just confirm I'm not making a stupid mistake before I place orders for these items?

Bike is a Carbona CFR-696 (branded from Planet-X as "On-One Free Ranger"), which takes a threaded BB. It's running mechanical SRAM Force 1x11. Any stupid mistakes I'm making (maybe related to chainline which I know nothing about)?

I plan to buy:

• Magene P515
• Any BSA BB that takes 24mm spindle (e.g. Shimano Ultegra)
• Any 110BCD narrow-wide ring with asymmetric bolt holes (e.g. https://www.amazon.com/DJC-Chainring-110bcd-Speed-Tiagra/dp/B0BLW3C66N)
• A set of chainring bolts and nuts (e.g. https://www.amazon.com/TruVativ-Steel-Chainring-Bolt-Black/dp/B001GSQO3W)